Clappet
[建] 止回阀
🗣️ 情景例句
It is absolutely impossible.
这是绝对不可能的。
How often did I tell you not to say a word?
我告诉你多少次不要讲话?
They devise hundreds of competitions which will enable us to win huge sums of money.
他们设计数以百计的竞赛，竞赛中有人可赢得巨额奖金。