The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
学习统计
CEFR 等级
难度
字幕 (98 片段)
understanding chronic obstructive
pulmonary disease COPD chronic
obstructive pulmonary disease or COPD is
a lung disease that makes it difficult
to breathe COPD is a long-term disease
that often gets worse over time and is
characterized by inflammation and severe
limitation of airflow in and out of the
lungs COPD is an umbrella term used to
describe a group of breathing conditions
the most common being chronic bronchitis
and emphysema many people living with
COPD may have both emphysema and chronic
bronchitis a few people have both asthma
and COPD cigarette smoking is the
leading cause of COPD long-term exposure
to secondhand smoke or irritants such as
air pollution dust or workplace fumes
and biomass exposure such as wood smoke
can also contribute to COPD an uncommon
完整字幕可在视频播放器中查看
评论 (0)
登录后评论互动模式
测验
正确答案：
相关视频
How are muscles named? - Terminology - Human Anatomy | Kenhub
The Fastest Way to Build English Fluency in 2026
LOTR The Return of the King - Andúril - Flame of the West
Smiling Woman Birthday | Short Horror Film
Disney's Encanto - Official "We Don't Talk About Bruno" Clip
Animated COPD Patient
测验
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
