cough与caught的区别

cough是咳嗽的意思，而caught则是抓到的意思，区别可以从以下例子看出：

During war time, in the front line, you have to be very quiet, can not cough, otherwise you might be caught by enemy. 战争期间，在前线，你必须非常安静，不能咳嗽，否则你可能会被敌人抓住。