brightness 30秒了解
- Brightness is primarily the measure of light intensity emitted or reflected from a source, essential for vision and digital display settings.
- Metaphorically, it describes a person's intelligence, quick wit, or potential, often used as a high compliment in educational and professional contexts.
- In terms of mood, brightness signifies optimism, cheerfulness, and a positive outlook on life, contrasting with darkness or gloom.
- Technically, it refers to color vividness in art and high-frequency prominence in acoustics, making it a versatile term across many disciplines.
The term brightness is a multifaceted noun that primarily describes the state or quality of being bright. At its most fundamental level, it refers to the amount of light that is reflected or emitted by an object. In the world of physics and optics, brightness is often used to quantify the luminance of a surface, which is a measure of how much light reaches the eye from that surface. This physical attribute is what allows us to distinguish between a dim candle and a powerful searchlight. However, the word transcends mere scientific measurement, finding its way into the realms of art, psychology, and everyday conversation. When we talk about the brightness of a color, we are referring to its vividness or intensity—how much it stands out against its surroundings. A 'bright' red is one that feels saturated and energetic, whereas a 'dull' red feels muted or greyish.
- Physical Luminance
- The objective measure of light intensity emitted from a source or reflected from a surface. For example, the brightness of a smartphone screen can be adjusted to suit ambient lighting conditions.
- Visual Vividness
- The subjective perception of color intensity. Artists use brightness to create depth and focus within a painting, drawing the eye toward illuminated areas.
- Intellectual Aptitude
- Metaphorically, brightness refers to a person's intelligence or quick-wittedness. A 'bright' student is one who grasps concepts quickly and shows great potential.
"The brightness of the morning sun was so intense that I had to squint even with my sunglasses on."
Beyond the physical and intellectual, brightness also carries a strong emotional connotation. It is frequently associated with cheerfulness, optimism, and hope. We speak of a 'bright future' to indicate a path filled with success and happiness. This metaphorical use links the presence of light with clarity and safety, contrasting it with the 'darkness' of uncertainty or despair. In design and architecture, the brightness of a room—achieved through large windows or light-colored walls—is known to significantly impact the mood of its occupants, promoting a sense of openness and well-being.
"Her brightness of spirit remained undimmed even during the most challenging times of her life."
In technical contexts, such as photography or digital imaging, brightness is a specific parameter that can be manipulated. Increasing the brightness of an image shifts all pixel values toward white, which can help reveal details in shadows but may also 'wash out' the highlights. This technical nuance is crucial for professionals who must balance brightness with contrast to achieve a balanced visual output. Understanding these various layers—from the literal photons hitting our retinas to the metaphorical spark of a genius idea—is key to mastering the word 'brightness'.
- Metaphorical Hope
- The quality of being promising or optimistic. A 'bright' outlook suggests that one expects positive outcomes.
- Acoustic Brightness
- In music production, 'brightness' refers to the prominence of high-frequency sounds, giving a recording a crisp or sharp quality.
"The teacher was impressed by the brightness of the young girl's questions, which showed a deep understanding of the topic."
Using the word brightness correctly requires an understanding of its grammatical role as a noun and its various semantic applications. Because it is an abstract noun derived from the adjective 'bright,' it functions as a descriptor for a quality rather than a physical object itself. You don't 'hold' brightness, but you can 'observe,' 'measure,' or 'adjust' it. In most contexts, it is an uncountable noun (e.g., 'The brightness of the sun'), but it can occasionally be used in a countable sense when referring to specific instances or degrees of light intensity in scientific studies.
"The monitor allows for precise control over brightness and contrast levels to reduce eye strain."
When applying 'brightness' to people, it is almost always a compliment. It suggests not just raw intelligence (like 'smartness') but a certain radiant, quick-thinking quality. If you describe a child's brightness, you are noting their curiosity and ability to learn. In a professional setting, mentioning the brightness of a colleague's idea implies that the idea is both clever and clarifying—it 'sheds light' on a problem. However, be careful not to confuse this with 'brilliance,' which is a much stronger term often reserved for exceptional, world-class talent or blindingly intense light.
In technical writing, especially in fields like astronomy or computer science, 'brightness' must be used with precision. In astronomy, 'apparent brightness' refers to how bright a star looks from Earth, while 'absolute brightness' (luminosity) refers to its actual energy output. In digital design, 'brightness' is often part of the HSB (Hue, Saturation, Brightness) color model. When writing about these topics, ensure you are using the term in its specific technical sense to avoid ambiguity. For example, increasing brightness is not the same as increasing saturation; the former adds white/light, while the latter adds color depth.
"Astronomers measured the brightness of the distant supernova to determine its distance from our galaxy."
Finally, consider the poetic and literary uses of the word. Writers often use 'brightness' to symbolize purity, divinity, or the presence of truth. It is a powerful tool for imagery. Instead of simply saying a room was 'well-lit,' saying it was 'filled with a soft brightness' evokes a specific atmosphere of calm and clarity. When using it metaphorically for emotions, it pairs well with verbs like 'dim,' 'fade,' or 'radiate.' For instance, 'The brightness of her joy faded when she heard the news' creates a vivid mental image of an emotional shift using the properties of light.
You will encounter the word brightness in a wide array of environments, ranging from high-tech laboratories to everyday household settings. One of the most common places is in the world of consumer electronics. Every time you open the settings on your smartphone, laptop, or television, you see a 'Brightness' slider. In this context, it is a functional term that users interact with daily to optimize their viewing experience. Tech reviewers frequently discuss the 'peak brightness' of screens, measured in nits, as a key selling point for new devices, especially those intended for outdoor use.
"The new OLED display offers incredible brightness, making it easy to read even in direct sunlight."
In the scientific community, particularly in physics and astronomy, 'brightness' is a fundamental concept. Astronomers use it to categorize celestial bodies. You might hear a scientist on a documentary explaining how the 'brightness' of a star fluctuates as a planet passes in front of it. Similarly, in meteorology, weather presenters might talk about the 'brightness' of the sky or the 'brightness' of the sun's reflection off snow (albedo), which can lead to conditions like snow blindness. In these fields, the word is used with a high degree of literal, measurable meaning.
The word is also a staple in educational and psychological settings. Teachers often use it during parent-teacher conferences to describe a student's potential or mental agility. 'I'm very impressed by the brightness of your son's mind' is a common way to praise a child's intellectual capabilities. In psychology, researchers might discuss the 'brightness' of a person's affect or mood, using light as a metaphor for mental health. A 'bright' affect is generally associated with a positive, engaged, and healthy mental state, while a 'dimmed' or 'flat' affect might indicate depression.
"The artist was known for the extraordinary brightness of her palette, using neon yellows and vibrant pinks to shock the viewer."
Lastly, you will find 'brightness' in literature and creative writing. It is used to set the scene or describe a character's aura. A novelist might describe the 'brightness of a summer afternoon' to evoke a feeling of warmth and nostalgia. In poetry, it might be used more abstractly to represent the 'brightness of truth' or the 'brightness of a soul.' In these contexts, the word is chosen for its sensory and symbolic weight, helping the reader to 'see' and 'feel' the light being described.
Despite its apparent simplicity, the word brightness is frequently misused or confused with related terms. One of the most common errors is using 'brightness' when 'light' or 'lighting' would be more appropriate. Remember: 'light' is the physical energy, while 'brightness' is the *quality* or *intensity* of that energy. You wouldn't say 'Turn on the brightness' when you mean 'Turn on the light.' You would say 'Increase the brightness of the light.' Confusing the substance with the attribute is a hallmark of non-native or imprecise usage.
Incorrect: "The brightness in the room was too much, so I closed the curtains."
Better: "The light in the room was too intense..." or "The brightness of the light was too much..."
Another frequent mistake involves the confusion between 'brightness' and 'brilliance.' While they are synonyms in some contexts, 'brilliance' usually implies a much higher degree of light or a more exceptional level of intelligence. Calling a standard LED bulb 'brilliant' might sound hyperbolic unless it is truly exceptional. Similarly, 'brightness' in a person suggests they are smart and capable, while 'brilliance' suggests they are a genius. Using 'brilliance' for everyday smartness can make your speech sound overly dramatic or unnatural.
In technical contexts, people often confuse 'brightness' with 'contrast.' Brightness adjusts the overall light level of an image, making everything lighter or darker. Contrast, on the other hand, adjusts the difference between the lightest and darkest parts of an image. If you increase brightness too much without adjusting contrast, your image will look 'washed out'—grey and flat rather than vibrant. Understanding this distinction is vital for anyone working with digital media, photography, or even just adjusting their computer monitor.
Common Error: Using 'brightness' to mean 'intelligence' in a formal academic paper. While acceptable in conversation, academic writing usually prefers 'cognitive ability,' 'intellectual aptitude,' or 'proficiency.'
Finally, be wary of using 'brightness' as a plural noun. While 'brightnesses' is technically a word, it is extremely rare and usually only found in very specific scientific papers discussing different levels of luminance. In 99% of cases, 'brightness' should remain singular. Saying 'The brightnesses of the different lamps' sounds clunky; 'The brightness levels of the different lamps' is much more natural and standard in English.
To truly master the concept of brightness, it is helpful to explore its synonyms and related terms, as each carries a slightly different nuance. The most direct synonym is often luminosity. However, 'luminosity' is more technical and is frequently used in science to describe the total amount of energy emitted by a light source per unit of time. While you might talk about the brightness of a lamp in your living room, a physicist would talk about the luminosity of a star. Using 'luminosity' in casual conversation can make you sound overly formal or scientific.
- Radiance
- This word suggests a glowing, warm, and often beautiful light. It is frequently used to describe a person's appearance (e.g., 'the radiance of a bride') or a sunset. It carries a more emotional and aesthetic weight than 'brightness.'
- Brilliance
- As discussed, this implies extreme brightness or exceptional talent. It often carries a sense of sparkling or shimmering, like the brilliance of a diamond.
- Glow
- A soft, steady light, often without much heat. It suggests a lower level of brightness that is gentle and pleasing to the eye.
"The radiance of the stained glass windows filled the cathedral with a kaleidoscope of colors, far surpassing mere brightness."
Another interesting related term is sheen or gloss. These refer to the brightness of a surface caused by reflected light. A 'glossy' photo has a high level of surface brightness, whereas a 'matte' photo does not. 'Sheen' is often used for fabrics like silk or polished wood. While 'brightness' describes the light itself, 'sheen' and 'gloss' describe how a surface interacts with light. Understanding these distinctions allows you to be much more descriptive in your writing and speaking.
On the metaphorical side, synonyms for 'brightness' (meaning intelligence) include sharpness, cleverness, and astuteness. 'Sharpness' suggests a quick, piercing intellect, while 'brightness' suggests a more general, radiant capability. If someone is 'sharp,' they might be good at spotting errors or making quick jokes. If they have 'brightness,' they are seen as having a promising and capable mind overall. Choosing the right word depends on whether you want to emphasize the speed of their thought (sharpness) or the quality of their potential (brightness).
How Formal Is It?
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发音指南
难度评级
需要掌握的语法
按水平分级的例句
The sun has a lot of brightness today.
Le soleil a beaucoup de luminosité aujourd'hui.
Noun used as the subject's attribute.
I like the brightness of this lamp.
J'aime la luminosité de cette lampe.
Object of the verb 'like'.
The brightness of the screen is too high.
La luminosité de l'écran est trop élevée.
Subject of the sentence.
The moon's brightness helps us see at night.
La luminosité de la lune nous aide à voir la nuit.
Possessive form 'moon's brightness'.
Please turn down the brightness.
S'il vous plaît, baissez la luminosité.
Imperative sentence.
The brightness of the snow hurts my eyes.
La luminosité de la neige me fait mal aux yeux.
Noun followed by a prepositional phrase.
This room needs more brightness.
Cette pièce a besoin de plus de luminosité.
Uncountable noun.
I love the brightness of summer.
J'adore la luminosité de l'été.
Abstract use of the noun.
The brightness of the red paint is very pretty.
La vivacité de la peinture rouge est très jolie.
Referring to color intensity.
He adjusted the brightness on his new watch.
Il a réglé la luminosité sur sa nouvelle montre.
Technical usage.
The teacher noticed the brightness of the student.
Le professeur a remarqué l'intelligence de l'élève.
Metaphorical use for intelligence.
We were surprised by the brightness of the stars.
Nous avons été surpris par l'éclat des étoiles.
Passive voice construction.
The brightness of the flash made everyone blink.
La luminosité du flash a fait cligner des yeux tout le monde.
Cause and effect.
You can change the brightness in the settings menu.
Vous pouvez modifier la luminosité dans le menu des paramètres.
Prepositional phrase 'in the settings menu'.
The brightness of her smile made me happy.
L'éclat de son sourire m'a rendu heureux.
Metaphorical/Emotional usage.
The morning brightness woke me up early.
La luminosité du matin m'a réveillé tôt.
Compound-like noun usage.
The brightness of the display can be set to automatic.
La luminosité de l'affichage peut être réglée sur automatique.
Passive modal 'can be set'.
There was a certain brightness in her eyes when she spoke.
Il y avait un certain éclat dans ses yeux quand elle parlait.
Existential 'there was'.
The brightness of the future depends on our actions today.
L'éclat de l'avenir dépend de nos actions d'aujourd'hui.
Metaphorical 'bright future'.
I was dazzled by the brightness of the headlights.
J'ai été ébloui par la luminosité des phares.
Participle 'dazzled' used with 'by'.
The brightness of the room improved after we painted it white.
La luminosité de la pièce s'est améliorée après que nous l'avons peinte en blanc.
Verb 'improved' describing the noun.
Astronomers use instruments to measure the brightness of distant galaxies.
Les astronomes utilisent des instruments pour mesurer la luminosité des galaxies lointaines.
Scientific context.
The brightness of the stage lights was overwhelming for the actors.
La luminosité des projecteurs de scène était écrasante pour les acteurs.
Adjective 'overwhelming' modifying the noun.
She added some brightness to the kitchen with yellow curtains.
Elle a ajouté de la luminosité à la cuisine avec des rideaux jaunes.
Direct object of 'added'.
The brightness of the image was adjusted to reveal hidden details.
La luminosité de l'image a été ajustée pour révéler des détails cachés.
Purpose clause 'to reveal'.
Her intellectual brightness was evident from a very young age.
Sa vivacité intellectuelle était évidente dès son plus jeune âge.
Adjective 'intellectual' modifying 'brightness'.
The sudden brightness of the lightning startled the sleeping dog.
La luminosité soudaine de l'éclair a fait sursauter le chien qui dormait.
Adjective 'sudden' modifying 'brightness'.
We need to balance the brightness of the colors to create a harmonious design.
Nous devons équilibrer la luminosité des couleurs pour créer un design harmonieux.
Infinitive phrase 'to balance'.
The brightness of the midday sun can be harmful to your skin.
La luminosité du soleil de midi peut être nocive pour votre peau.
Modal 'can be' expressing possibility.
The brightness of his personality made him popular at parties.
L'éclat de sa personnalité le rendait populaire dans les fêtes.
Metaphorical usage for personality.
There is a noticeable brightness in the new recording's sound quality.
Il y a une clarté notable dans la qualité sonore du nouvel enregistrement.
Acoustic context.
The brightness of the polished floor reflected the ceiling lights.
L'éclat du sol poli reflétait les lumières du plafond.
Verb 'reflected' showing interaction with light.
The perceived brightness of a light source is subjective and depends on the observer's eyes.
La luminosité perçue d'une source lumineuse est subjective et dépend des yeux de l'observateur.
Complex subject with past participle 'perceived'.
The author uses the brightness of the setting to symbolize the protagonist's epiphany.
L'auteur utilise la luminosité du décor pour symboliser l'épiphanie du protagoniste.
Literary analysis context.
Despite the brightness of the evidence, the jury remained unconvinced.
Malgré l'évidence éclatante, le jury n'a pas été convaincu.
Metaphorical use for 'clarity' or 'obviousness'.
The brightness of the supernova provided astronomers with crucial data about the expanding universe.
La luminosité de la supernova a fourni aux astronomes des données cruciales sur l'univers en expansion.
Scientific precision.
The brightness of the silk fabric gave the gown a regal appearance.
L'éclat du tissu de soie donnait à la robe une apparence royale.
Describing material properties.
One must account for the brightness of the ambient light when calibrating professional monitors.
Il faut tenir compte de la luminosité de la lumière ambiante lors de l'étalonnage des moniteurs professionnels.
Formal 'one must' construction.
The brightness of her intellect was often masked by her humble demeanor.
L'éclat de son intelligence était souvent masqué par son comportement humble.
Contrast between 'brightness' and 'demeanor'.
The brightness of the high notes in the soprano's aria was breathtaking.
L'éclat des notes aiguës dans l'air de la soprano était à couper le souffle.
Acoustic/Musical context.
The brightness of the dawn seemed to herald a new era of prosperity for the war-torn nation.
La luminosité de l'aube semblait annoncer une nouvelle ère de prospérité pour la nation déchirée par la guerre.
Poetic/Political metaphor.
In his later works, the painter moved away from realism toward an obsession with pure brightness and form.
Dans ses œuvres ultérieures, le peintre s'est éloigné du réalisme pour se tourner vers une obsession de la pure luminosité et de la forme.
Art history context.
The brightness of the desert sun is so absolute that it obliterates all shadows at noon.
La luminosité du soleil du désert est si absolue qu'elle efface toutes les ombres à midi.
Use of 'absolute' to modify 'brightness'.
There is a terrifying brightness to his logic that leaves no room for human error or emotion.
Il y a une clarté terrifiante dans sa logique qui ne laisse aucune place à l'erreur humaine ou à l'émotion.
Metaphorical use for 'uncompromising clarity'.
The brightness of the screen should be modulated to prevent the degradation of the organic LEDs over time.
La luminosité de l'écran doit être modulée pour éviter la dégradation des LED organiques au fil du temps.
Technical/Engineering context.
She spoke with a brightness that belied the profound sadness she felt within.
Elle parlait avec un éclat qui démentait la profonde tristesse qu'elle ressentait en elle.
Complex emotional contrast.
The brightness of the diamond is a result of its high refractive index and expert cutting.
L'éclat du diamant est le résultat de son indice de réfraction élevé et de sa taille experte.
Gemological context.
The sheer brightness of the explosion was visible from several hundred miles away in space.
La luminosité pure de l'explosion était visible à plusieurs centaines de kilomètres dans l'espace.
Use of 'sheer' for emphasis.
近义词
常见搭配
常用短语
In the brightness of day
A spark of brightness
Lose its brightness
Maximum brightness
Adjust for brightness
The brightness of the future
Mental brightness
Visual brightness
Extreme brightness
Subtle brightness
容易混淆的词
Light is the substance; brightness is the intensity of that substance.
Brilliance is a much higher degree of brightness or intelligence.
Clarity is about how clear something is; brightness is about how much light it has.
习语与表达
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容易混淆
句型
如何使用
In science, use 'luminosity' for total power and 'brightness' for perception.
The word is almost always positive when applied to people or the future.
Always distinguish between literal light and figurative intelligence.
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Using 'brightness' when you mean 'light'.
Light is the object; brightness is the quality.
-
Saying 'many brightnesses'.
Brightness is usually uncountable.
-
Confusing brightness with contrast.
They are different visual settings.
-
Using 'brilliance' for a normal lamp.
Brilliance implies something exceptional or blinding.
-
Using 'brightness' to mean 'clarity' in a photo.
A bright photo can still be blurry.
小贴士
Context Matters
Always check if you are talking about light, a screen, or a person's mind. The meaning shifts slightly depending on the topic. This helps you choose the right accompanying adjectives.
Noun Form
Remember that brightness is an uncountable noun in most cases. Use 'more' or 'less' instead of 'many' or 'few.' For example, 'There is more brightness in this room.'
Upgrade Your Words
If you want to sound more professional in science, use 'luminosity.' If you want to sound more poetic, use 'radiance.' This shows a higher level of English proficiency.
Screen Health
Lowering the brightness of your screens at night can help you sleep better. This is because high brightness mimics daylight and keeps your brain awake. Many devices have a 'night mode' for this.
Complimenting Others
When you praise someone's 'brightness,' you are acknowledging their potential. It is a great way to encourage students or junior colleagues. It sounds more thoughtful than just saying 'you are smart.'
Color Theory
Brightness is one of the three pillars of color (Hue, Saturation, Brightness). Changing the brightness of a color can completely change the feeling of a design. Experiment with this in your creative projects.
Avoid Repetition
Instead of using 'brightness' repeatedly, try synonyms like 'light,' 'illumination,' or 'glow.' This makes your writing more interesting and varied for the reader. Variety is key to good style.
Catch the Nuance
Pay attention to how native speakers use the word metaphorically. You will often hear it in phrases like 'a bright spot in my day.' This helps you understand the emotional weight of the word.
Natural Flow
In casual speech, 'brightness' is often shortened to 'the bright' in very specific slang, but it's safer to use the full word. Say 'The brightness is too high' rather than 'It's too bright' if you want to be formal.
Word Families
Learn 'bright,' 'brighten,' and 'brightly' alongside 'brightness.' Knowing the whole family makes it much easier to use the word correctly in different sentence structures. It builds your overall fluency.
记住它
记忆技巧
BRIGHT-NESS: Think of a BRIGHT light and the MESS (ness) of light it spreads everywhere.
词源
Old English
文化背景
Chiaroscuro is a technique that plays with extreme brightness and darkness.
The constant adjustment of brightness on devices has made the word a daily functional term.
The 18th-century movement focused on reason and 'light' over superstition.
在生活中练习
真实语境
对话开场白
"Do you prefer high or low brightness on your phone?"
"Who is the person with the most intellectual brightness you've ever met?"
"How does the brightness of a room affect your mood?"
"What is the most beautiful example of natural brightness you've seen?"
"Do you think a bright future is guaranteed by hard work alone?"
日记主题
Describe a moment when the brightness of the sun changed your perspective.
Write about a person whose inner brightness inspires you.
How do you find brightness in your life during difficult times?
Reflect on the technical brightness of the world today compared to the past.
What does 'intellectual brightness' mean to you personally?
常见问题
10 个问题Brightness is a noun. The adjective form is 'bright.' You use brightness to describe the quality of being bright.
Yes, you can use it metaphorically to describe someone's intelligence or their cheerful personality. It is considered a very positive compliment.
Brightness is usually how we perceive light, while luminosity is a scientific measure of the actual energy a light source emits. Luminosity is more technical.
You can usually find the brightness setting in the display or system settings of your device, often represented by a sun icon. Most laptops also have dedicated keys for this.
Yes, it is the plural form of brightness, but it is very rarely used. It only appears in specific scientific contexts comparing different light levels.
In music and sound engineering, brightness refers to the prominence of high-frequency sounds. A 'bright' sound is crisp and clear, while a 'dark' sound is bassy.
The sun's actual brightness (luminosity) is fairly constant, but its apparent brightness changes based on the time of day, atmospheric conditions, and your location on Earth.
Usually, brightness is positive, but 'blinding brightness' can be negative if it causes discomfort or prevents you from seeing clearly. Metaphorically, it is almost always positive.
Common synonyms include luminosity, radiance, brilliance, and glow. For intelligence, synonyms include smartness, sharpness, and cleverness.
Artists use brightness to create focal points, depth, and mood in their work. High brightness can draw the viewer's eye to a specific part of a painting.
自我测试 180 个问题
/ 180 correct
Perfect score!
Summary
Brightness is a versatile noun that bridges the physical world of light and the abstract world of human intelligence and emotion. Whether you are adjusting a screen, praising a student, or describing a sunny day, it signifies intensity, clarity, and positivity.
- Brightness is primarily the measure of light intensity emitted or reflected from a source, essential for vision and digital display settings.
- Metaphorically, it describes a person's intelligence, quick wit, or potential, often used as a high compliment in educational and professional contexts.
- In terms of mood, brightness signifies optimism, cheerfulness, and a positive outlook on life, contrasting with darkness or gloom.
- Technically, it refers to color vividness in art and high-frequency prominence in acoustics, making it a versatile term across many disciplines.
Context Matters
Always check if you are talking about light, a screen, or a person's mind. The meaning shifts slightly depending on the topic. This helps you choose the right accompanying adjectives.
Noun Form
Remember that brightness is an uncountable noun in most cases. Use 'more' or 'less' instead of 'many' or 'few.' For example, 'There is more brightness in this room.'
Upgrade Your Words
If you want to sound more professional in science, use 'luminosity.' If you want to sound more poetic, use 'radiance.' This shows a higher level of English proficiency.
Screen Health
Lowering the brightness of your screens at night can help you sleep better. This is because high brightness mimics daylight and keeps your brain awake. Many devices have a 'night mode' for this.
例句
You should lower the brightness on your computer screen to reduce eye strain.
相关内容
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abdocion
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abdocly
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aberration
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abfacible
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abfactency
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