casco 30秒了解
- Casco primarily means the hoof of an animal like a horse or cow.
- In maritime terms, it refers to the hull or main body of a ship.
- It is the word for a turtle or tortoise shell (the carapace).
- In Brazil and Portugal, it refers to an empty, returnable glass bottle.
The Portuguese word casco is a versatile masculine noun that primarily refers to the protective outer layer or structural frame of various objects and living beings. At its most literal biological level, it denotes the hoof of an ungulate mammal, such as a horse, cow, or pig. This hard, keratinous structure is essential for the animal's mobility and protection. However, the utility of the word extends far beyond the stable. In a maritime context, casco refers to the hull of a ship or boat—the watertight body of the vessel that excludes masts, rigging, and internal machinery. Furthermore, when discussing biology more broadly, it is used to describe the shell of a turtle or a tortoise, representing the hard carapace that shields the creature from predators.
- Biological Context
- In veterinary medicine and farming, 'casco' is the standard term for the hoof. Proper maintenance of the 'casco' is vital for the health of livestock.
O ferrador está limpando o casco do cavalo com muito cuidado para não machucar o animal.
Another fascinating usage of 'casco' occurs in the beverage industry, particularly in Brazil and Portugal. It refers to the empty glass bottle that is returned to a store in exchange for a full one, part of a deposit-refund system. When you buy a beer or a soda in a glass bottle, you might be asked if you have the 'casco' to trade in. This usage highlights the word's underlying theme of a 'container' or 'outer shell'. Additionally, in more informal or older contexts, 'casco' can refer to a helmet or even the skull (the 'casco da cabeça'), though 'capacete' and 'crânio' are much more common for those specific meanings today.
- Maritime Engineering
- The 'casco' of a ship is its most critical structural component. Engineers must ensure the hull is hydrodynamic and resistant to pressure.
O casco do navio petroleiro foi reforçado com aço duplo para evitar vazamentos em caso de colisão.
In a metaphorical sense, 'casco' can imply a tough exterior or a foundational structure. For example, if someone has a 'casco duro' (hard shell), they might be emotionally resilient or perhaps stubborn, similar to the English idiom 'thick-skinned', though 'casco' specifically evokes the image of a turtle or a hoof. Understanding the multi-faceted nature of this word allows learners to navigate conversations ranging from agricultural management to naval architecture and even the local grocery store's recycling policies. The word is consistently masculine (o casco, os cascos) and follows standard Portuguese phonetic rules.
- Environmental Usage
- Biologists use 'casco' to describe the protective shell of tortoises (jabutis) and turtles (tartarugas), which is part of their skeletal structure.
A tartaruga se encolheu para dentro do seu casco assim que percebeu a aproximação do predador na praia.
Using the word casco correctly requires identifying the specific context—whether you are talking about an animal, a vehicle, or an object. Because it is a masculine noun, it is always preceded by masculine articles like 'o', 'um', 'os', or 'uns'. When referring to animal hooves, it is common to use the plural 'os cascos' because most animals have four. In maritime contexts, 'o casco' is usually singular, referring to the unified body of the ship. Let's explore how to integrate this word into various sentence structures, from simple descriptions to complex technical explanations.
- Descriptive Sentences
- Use 'casco' followed by an adjective to describe the condition of the object. Common adjectives include 'duro' (hard), 'rachado' (cracked), or 'resistente' (resistant).
O cavalo selvagem possui um casco extremamente resistente devido ao desgaste natural no solo pedregoso.
In the context of recycling or commerce, 'casco' is often used as a direct object in sentences involving verbs like 'levar' (to take), 'trazer' (to bring), or 'devolver' (to return). This is a very practical use of the word for anyone living in a Portuguese-speaking country. For instance, at a supermarket, you might say: 'Eu trouxe os cascos para trocar'. This immediately informs the clerk that you have empty bottles for the credit-return system. In maritime engineering, 'casco' is often the subject of verbs like 'flutuar' (to float) or 'sustentar' (to support).
- Commercial Interaction
- When buying beverages, 'casco' refers to the container. It is a key term for sustainable consumption and budgeting in local markets.
Você precisa pagar pelo conteúdo e pelo casco se não tiver uma garrafa vazia para a troca.
Furthermore, 'casco' appears in technical manuals and scientific reports. When discussing the anatomy of a tortoise, 'casco' is often broken down into the 'carapaça' (top part) and 'plastrão' (bottom part), though 'casco' remains the general term for the whole unit. In shipbuilding, sentences often focus on the maintenance of the hull, such as 'limpar o casco' (to clean the hull), which is a vital task to remove barnacles and improve fuel efficiency. Note that 'casco' is never used for the shell of a nut or an egg; for those, you must use 'casca'.
- Scientific Description
- Biologists study the 'casco' to determine the age and health of certain species. The growth rings on a turtle's shell can provide valuable data.
O pesquisador analisou as ranhuras no casco da tartaruga para estimar sua idade aproximada.
The word casco resonates through various sectors of Portuguese-speaking societies. If you find yourself in the countryside of Rio Grande do Sul, Brazil, or the Alentejo region in Portugal, you will hear 'casco' frequently in the context of equestrian culture. Gauchos and farmers are deeply concerned with the 'saúde dos cascos' (health of the hooves) of their horses, as a lame horse is a significant liability. You might hear a farmer saying, 'O cavalo está com o casco rachado', indicating a need for a farrier. This agricultural setting is perhaps the most traditional place to encounter the word in its biological sense.
- The Shipyards and Ports
- In coastal cities like Santos, Rio de Janeiro, or Lisbon, 'casco' is a staple of maritime jargon. Sailors and port workers use it daily.
A manutenção do casco é essencial para evitar a incrustação de organismos marinhos que reduzem a velocidade.
Moving to urban environments, the word takes on its commercial meaning. In many neighborhoods, especially in Brazil, the 'depósito de bebidas' (beverage warehouse) is a community hub. Here, 'casco' is spoken by everyone from the delivery truck driver to the customer buying a crate of soda. You'll hear phrases like 'tem que devolver o casco' or 'o preço do casco não está incluído'. This reflects a culture of reuse that remains strong in many parts of the Lusophone world. It’s a word that bridges the gap between old-school sustainability and modern commerce.
- Veterinary and Nature Documentaries
- On television or in educational settings, 'casco' is the formal term used when discussing the anatomy of chelonians (turtles) or ungulates.
O documentário mostrou como a tartaruga marinha usa seu casco para se proteger de ataques de tubarões.
Interestingly, you might also hear 'casco' in sports, particularly in cycling or motorcycling, though it is becoming rarer. Older speakers might refer to a helmet as a 'casco', though 'capacete' has largely taken over. However, in some technical racing contexts, the 'casco' might refer to the outer shell of the helmet itself. Finally, in idioms and slang, 'casco' pops up in expressions like 'casco de tartaruga' to describe something very hard or slow, or 'bater os cascos' as a humorous or irreverent way to talk about death. Whether you are at a harbor, a farm, or a bar, 'casco' is a word that anchors you in the physical reality of protection and structure.
- Industrial Recycling
- Logistics managers use 'gestão de cascos' to refer to the management of returnable packaging in the supply chain.
A fábrica investiu em um novo sistema para lavar cada casco de vidro antes do reenvase da bebida.
The most frequent mistake English speakers make with the word casco is confusing it with its feminine counterpart, casca. While they look similar, their meanings are distinct and rarely interchangeable. Casco is for hooves, ship hulls, turtle shells, and glass bottles. Casca, on the other hand, is used for the skin or peel of fruits (casca de laranja), the bark of trees (casca de árvore), the shell of an egg (casca de ovo), or the shell of a nut (casca de noz). Using 'casco' for an orange peel would sound very strange to a native speaker, implying the orange has a structural hull or a hoof.
- Casco vs. Casca
- Casco (Masculine): Hoof, Hull, Turtle Shell, Bottle.
Casca (Feminine): Peel, Bark, Eggshell, Nut shell.
Errado: Eu joguei o casco da banana no lixo.
Correto: Eu joguei a casca da banana no lixo.
Another common error involves the word for 'seashell'. In English, we use 'shell' for both a turtle and a seashell found on the beach. In Portuguese, a seashell is a concha. Calling a seashell a 'casco' is technically incorrect, as 'casco' implies a much larger or more protective structural element. Similarly, while 'casco' can mean 'hull', learners sometimes confuse it with 'convés' (deck). The 'casco' is the bottom part that touches the water, while the 'convés' is the top part where people walk. Using them interchangeably can lead to confusion in maritime discussions.
- Casco vs. Concha
- Casco: Turtle shell, hoof.
Concha: Seashell, mollusk shell, or a ladle/scoop.
Errado: As crianças estão coletando cascos na areia.
Correto: As crianças estão coletando conchas na areia.
Finally, watch out for the pluralization and gender agreement. Since 'casco' is masculine, all associated adjectives must be masculine. Beginners often forget this when they are thinking of the English word 'shell', which is gender-neutral. For example, 'the hard shell' must be 'o casco duro', not 'a casco dura'. Also, in the context of bottles, remember that 'casco' specifically refers to the empty bottle intended for return. If you are just talking about a bottle in general without the returnable context, 'garrafa' is the more appropriate and common term.
- Technical Nuance
- In aviation, the body of the plane is the 'fuselagem', not the 'casco'. 'Casco' is strictly for water-based vessels.
Portuguese offers several words that overlap with casco, and choosing the right one depends entirely on the object's nature. If you are looking for alternatives, you must first define what aspect of 'casco' you are trying to convey. Is it the protection? The structure? The biological part? Below, we compare 'casco' with its closest relatives to help you achieve precision in your speech and writing.
- Casco vs. Carapaça
- 'Casco' is the general term for a turtle's shell, but 'carapaça' is the more scientific term for the upper part of that shell. 'Carapaça' is also used for insects and crustaceans (like crabs).
For animals that don't have a single hard hoof but rather claws or nails, the word is unha (nail) or garra (claw). For example, a dog has 'unhas', while a horse has 'cascos'. If you are talking about the hard covering of a rhinoceros horn, that is not a 'casco', but simply 'chifre'. In the maritime world, while 'casco' is the hull, you might also hear quilha (keel), which is the 'spine' of the hull. While they are related, the 'quilha' is just one part of the 'casco'.
- Casco vs. Blindagem
- 'Blindagem' refers to armor, usually on a vehicle like a tank or a bulletproof car. While a 'casco' protects a ship, 'blindagem' is specifically for protection against weapons.
O navio de guerra tem um casco de aço com uma blindagem especial contra torpedos.
In the context of bottles and packaging, synonyms include vasilhame or embalagem. 'Vasilhame' is a very common alternative to 'casco' when referring to returnable bottles in a more formal or commercial sense. If you go to a large distribution center, they will likely use 'vasilhame' instead of the more colloquial 'casco'. However, 'embalagem' is much broader, referring to any kind of packaging, including boxes, plastic wraps, and cans. 'Casco' remains the most specific and traditional term for the glass bottle itself.
- Casco vs. Capacete
- While 'casco' was historically used for helmets, today 'capacete' is the universal term. Use 'capacete' for motorcycles, construction sites, and sports.
发音指南
- Pronouncing the 's' like a 'z' (it should be a sharp 's' or a 'sh' sound depending on the dialect).
- Over-emphasizing the final 'o' (in Brazil, it often sounds like a soft 'u').
- Confusing it with 'casca' (feminine).
- Nasalizing the 'a' (it should be an open 'a').
- Pronouncing the 'c' as 'ch' (it is a hard 'k' sound).
按水平分级的例句
O cavalo tem o casco preto.
The horse has a black hoof.
Masculine singular noun with masculine singular adjective.
O casco é duro.
The hoof is hard.
Simple subject-verb-adjective structure.
Eu vejo um casco.
I see a hoof.
Direct object with indefinite article.
O cavalo limpa o casco.
The horse cleans the hoof.
Active voice with a simple verb.
Os cascos são fortes.
The hooves are strong.
Plural agreement (os cascos ... são fortes).
O meu cavalo tem quatro cascos.
My horse has four hooves.
Use of numeral with plural noun.
O casco do boi é grande.
The ox's hoof is big.
Possessive structure using 'do' (de + o).
Não toque no casco.
Don't touch the hoof.
Negative imperative form.
A tartaruga tem um casco muito forte.
The turtle has a very strong shell.
Introduction of the 'shell' meaning.
O gato não tem casco, tem patas.
The cat doesn't have a hoof, it has paws.
Contrast between different animal parts.
O casco da tartaruga é marrom.
The turtle's shell is brown.
Descriptive sentence with color.
Nós vimos os cascos dos cavalos na areia.
We saw the horses' hooves in the sand.
Plural possessive (dos cavalos).
O menino desenhou um casco de tartaruga.
The boy drew a turtle shell.
Compound-like structure 'casco de tartaruga'.
A tartaruga entra no seu casco.
The turtle goes into its shell.
Prepositional phrase 'no seu casco'.
O casco protege o animal.
The shell/hoof protects the animal.
Verbal agreement with a singular subject.
Existem muitos tipos de cascos.
There are many types of hooves.
Use of 'existem' for existence.
O casco do navio é feito de aço.
The ship's hull is made of steel.
Introduction of the maritime 'hull' meaning.
Eu preciso devolver o casco da garrafa de cerveja.
I need to return the empty beer bottle.
Commercial usage for returnable bottles.
O marinheiro pintou o casco do barco de azul.
The sailor painted the boat's hull blue.
Action verb 'pintar' applied to 'casco'.
A água entrou pelo casco rachado.
The water entered through the cracked hull.
Preposition 'pelo' (por + o) indicating path.
O cavalo precisa de um novo tratamento no casco.
The horse needs a new treatment on its hoof.
Abstract noun 'tratamento' with 'no casco'.
Você tem o casco para trocar?
Do you have the (empty) bottle to exchange?
Interrogative sentence in a commercial context.
O casco da tartaruga marinha é mais hidrodinâmico.
The sea turtle's shell is more hydrodynamic.
Comparative adjective 'mais hidrodinâmico'.
Eles encontraram um furo no casco do iate.
They found a hole in the yacht's hull.
Noun 'furo' followed by prepositional phrase.
A integridade do casco é vital para a segurança da embarcação.
The hull's integrity is vital for the vessel's safety.
Use of abstract technical noun 'integridade'.
O ferrador utiliza ferramentas especiais para aparar o casco.
The farrier uses special tools to trim the hoof.
Professional vocabulary 'ferrador' and 'aparar'.
O custo do casco deve ser considerado no preço final da bebida.
The cost of the bottle must be considered in the final price of the drink.
Passive voice 'deve ser considerado'.
O casco duplo do petroleiro evita desastres ambientais.
The oil tanker's double hull prevents environmental disasters.
Compound concept 'casco duplo'.
A carapaça é a parte superior do casco dos quelônios.
The carapace is the upper part of the shell of chelonians.
Scientific terminology 'carapaça' and 'quelônios'.
O impacto causou uma fissura profunda no casco de fibra de vidro.
The impact caused a deep fissure in the fiberglass hull.
Specific material 'fibra de vidro'.
O animal foi diagnosticado com uma infecção grave no casco.
The animal was diagnosed with a serious hoof infection.
Medical/Veterinary context.
É necessário raspar o casco para remover as cracas.
It is necessary to scrape the hull to remove the barnacles.
Impersonal expression 'É necessário'.
A corrosão galvânica comprometeu a espessura do casco metálico.
Galvanic corrosion compromised the thickness of the metal hull.
Advanced technical/scientific vocabulary.
O projeto arquitetônico do museu lembra o casco invertido de uma nau.
The museum's architectural design resembles the inverted hull of a ship.
Metaphorical and descriptive use in arts/architecture.
A laminação do casco exige precisão milimétrica para garantir a estanqueidade.
The lamination of the hull requires millimeter precision to ensure watertightness.
Industrial process terminology.
O filósofo comparou a alma a um casco frágil em um mar revolto.
The philosopher compared the soul to a fragile hull in a stormy sea.
Literary and philosophical metaphor.
A morfologia do casco varia significativamente entre as espécies de jabutis.
The shell morphology varies significantly among species of tortoises.
Academic/Biological register.
A logística reversa de cascos é um pilar da economia circular.
The reverse logistics of bottles is a pillar of the circular economy.
Economic and environmental jargon.
O som dos cascos galopando no asfalto ecoava pela rua deserta.
The sound of hooves galloping on the asphalt echoed through the deserted street.
Evocative literary description.
A manutenção preventiva dos cascos evita a claudicação crônica em bovinos.
Preventive hoof maintenance prevents chronic lameness in cattle.
Specialized veterinary terminology.
A hidrodinâmica do casco foi otimizada por meio de simulações computacionais de fluidos.
The hull's hydrodynamics were optimized through computational fluid dynamics simulations.
Complex engineering sentence structure.
O casco, outrora reluzente, jazia agora sob camadas de esquecimento e limo.
The hull, once gleaming, now lay under layers of oblivion and silt.
Poetic and archaic literary style.
A queratinização excessiva do casco pode indicar carências nutricionais severas.
Excessive keratinization of the hoof may indicate severe nutritional deficiencies.
High-level biological/medical analysis.
O tribunal deliberou sobre a responsabilidade civil pela ruptura do casco do navio.
The court deliberated on the civil liability for the rupture of the ship's hull.
Legal and formal register.
A simetria bilateral do casco é um traço evolutivo fundamental para esses répteis.
The bilateral symmetry of the shell is a fundamental evolutionary trait for these reptiles.
Scientific/Evolutionary discourse.
O artesão esculpiu meticulosamente o casco em miniatura com madeira de lei.
The artisan meticulously carved the miniature hull with hardwood.
Focus on craftsmanship and materials.
A resiliência do casco frente às pressões abissais desafia a engenharia moderna.
The hull's resilience against abyssal pressures challenges modern engineering.
Advanced structural engineering context.
O tilintar dos cascos de vidro vazios anunciava a chegada do caminhão de entregas.
The clinking of empty glass bottles announced the arrival of the delivery truck.
Onomatopoeic and sensory literary description.
常见搭配
常用短语
— To exchange an empty bottle for a full one at a store.
Vou ao mercado trocar o casco de cerveja.
— A glass bottle, often emphasizing its returnable nature.
Prefiro refrigerante em casco de vidro.
— Sometimes used to mean 'at the very bottom' or 'on the structure'.
O problema está no casco do projeto.
— A hull made of steel, implying strength.
O navio quebra-gelo tem um casco de aço reforçado.
— A hole in the hull; often used metaphorically for a fatal flaw.
A empresa faliu por causa de um furo no casco financeiro.
— Beer from a large returnable glass bottle.
Garçom, traz uma cerveja de casco bem gelada!
— The design or lines of a ship's hull.
O desenho do casco afeta a velocidade do barco.
— A donkey's hoof; sometimes used to describe someone stubborn.
Ele é teimoso como um casco de burro.
习语与表达
— To die. An informal and slightly irreverent way to say someone passed away.
Infelizmente, o cachorro do vizinho bateu os cascos.
informal— Thick-skinned or resilient. Refers to someone who can handle hardship or is stubborn.
Aquele político tem casco duro, nada o abala.
colloquial— To kick (literally) or to behave rudely/violently.
Cuidado para o cavalo não dar com os cascos em você.
neutral— To come out of one's shell; to stop being shy.
Depois de alguns meses, ela finalmente saiu do casco.
informal— To retreat into one's shell; to become antisocial or defensive.
Sempre que há uma briga, ele se mete no casco.
informal— To run away or leave quickly.
Assim que viu a polícia, ele levantou os cascos.
slang— Used to describe something very slow or very hard/resistant.
A internet hoje está um casco de tartaruga.
colloquial— To take a bath or shower (very informal slang).
Vou ali lavar o casco e já volto.
slang— To break the hull; to fail significantly.
O plano quebrou o casco logo no início.
metaphorical— To have experience or 'mileage' in a certain field.
Ele já tem muito casco nessa profissão.
informal词族
名词
动词
形容词
相关
词源
From the Vulgar Latin *quassicare (to break/shatter) or related to 'cassis' (helmet). It shares roots with the Spanish 'casco'.
原始含义： A fragment, a piece of a broken pot, or a protective covering.
Summary
The word 'casco' always refers to a hard, structural outer layer, whether it is biological (hoof, shell), mechanical (ship hull), or commercial (returnable glass bottle). Example: 'O casco do cavalo é forte' (The horse's hoof is strong).
- Casco primarily means the hoof of an animal like a horse or cow.
- In maritime terms, it refers to the hull or main body of a ship.
- It is the word for a turtle or tortoise shell (the carapace).
- In Brazil and Portugal, it refers to an empty, returnable glass bottle.
相关内容
这个词在其他语言中
更多nature词汇
à beira
B1On the edge or brink of.
à beira de
B1在...边缘；即将。用于物理位置或即将发生的状态。
à distância
A2在远处，远程地。
a favor de
B1In favor of; supporting.
à sombra
A2在阴凉处 (Zài yīnliáng chù). '他在树荫下休息 (Ele descansa à sombra da árvore).' / '阴凉处比较凉快 (À sombra é mais fresco).'
à volta
A2« À volta » 意为“周围”或“附近”。它用于描述一个通用区域或附近的一个地点。例如：咖啡馆在广场<strong>à volta</strong>。（咖啡馆在广场周围。）它也表示圆形运动。例如：我们去公园<strong>à volta</strong>散步吧。（我们去公园周围散步吧。）
abanar
A2To wave or swing back and forth, like an animal's tail; to wag.
abater
B11. 砍伐（树木）。 2. 屠宰（动物）。 3. 扣除（费用）。 '砍伐那棵树。' '你可以从税收中扣除这些费用。'
Abelha
A2Bee; a stinging winged insect that produces honey.
abeto
A2Abeto（abeto）是一种常绿针叶树，有扁平的针叶，常被称为冷杉。
