1. 咳嗽
    When you cough, you force air out of your throat with a sudden, harsh noise. You often cough when you are ill, or when you are nervous or want to attract someone's attention.

cough在线翻译

    e.g. Graham began to cough violently...
           格雷厄姆开始剧烈咳嗽。
    e.g. He coughed. 'Excuse me, Mrs Allsworthy, could I have a word?'
           他咳了一声说道，“奥尔斯沃西夫人，打断您一下，我能说句话吗？”

2. 咳嗽(病)
    A cough is an illness in which you cough often and your chest or throat hurts.

    e.g. ...if you have a persistent cough for over a month.
           如果你持续咳嗽一个月以上

3. 咯出(血等)
    If you cough blood or mucus, it comes up out of your throat or mouth when you cough.

cough

    e.g. I started coughing blood so they transferred me to a hospital.
           我开始咯血，于是他们把我转到了医院。

4. (发动机等)突然发出刺耳的噪声
    If an engine or other machine coughs, it makes a sudden, harsh noise.

cough是什么意思

    e.g. Then suddenly, the engine coughed, spluttered and died.
           接着，发动机突然咔咔地响了几声，然后就熄火了。

相关词组：cough up