vt.& vi. 咳嗽;(引擎等)发噗噗声;咳出;
n. 咳,咳嗽;咳嗽病;(机关枪等的)连续发射声;
🗣️ 情景例句
I'm terribly sorry about that.
为此我非常抱歉。
Good watch prevents misfortune.
有备无患。
Although mankind has undergone no general improvement in intelligence or morality, it has made extraordinary progress in the accumulation of knowledge.