名詞 cough:

1. sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis
   同義詞：coughing
2. the act of exhaling air suddenly with a noise
   同義詞：coughing

動詞 cough:

1. exhale abruptly, as when one has a chest cold or congestion

1. You really ought to/should do something about that cough!
   你咳嗽那麼厲害，真得治一治了！
2. The baby has a cough.
   嬰兒咳嗽了。
3. Why don't you lay off smoking for a while until your cough gets better?
   你為什么不先戒煙等你的咳嗽好了一些后再說?
4. She gave a quiet cough to attract my attention.
   她輕輕地咳了一聲好引起我注意。

cough

v.（動詞）
coughed,cough.ing,coughs
v.intr.（不及物動詞）
To expel air from the lungs suddenly and noisily, often to keep the respiratory passages free of irritating material.
咳，咳嗽：從肺里突然的帶有聲響地排出氣體，通常為了使呼吸道不受物質(zhì)阻礙
To make a noise similar to noisy expulsion of air from the lungs:
發(fā)出咳嗽般的聲音：制造象從肺里有聲音地放氣般的聲音，發(fā)出象咳嗽般的聲音：
例句：
The engine coughed and died.
發(fā)動機喀隆了幾聲就熄火了

v.tr.（及物動詞）
To expel by coughing:
通過咳嗽排出：
例句：
coughed up phlegm.
咳出痰

n.（名詞）
The act of coughing.
咳嗽：咳嗽的動作
An illness marked by frequent coughing.
咳嗽?。阂越?jīng)常性咳嗽為特點的病

<常用詞組>cough up 【俚語】
To hand over or relinquish (money or another possession), often reluctantly.
勉強交出：掏出或放棄（金錢或其他財產(chǎn)），通常是不情愿地
To confess or disclose:
承認或供出：
例句：
When he saw that the police might arrest him, he coughed up the details of what he had seen.
當他意識到警察也許會逮捕他，才全盤托出他看到的一切

來源：
Middle English coughen
中古英語 coughen
[ultimately of imitative origin]
[極大程度上源自模仿]