Clappet (valve)
[化] 止回阀
🧩 词语组成解析
[建] 止回阀
🗣️ 情景例句
Now I want to ask you a few questions, if you don't mind.
如果不介意的话，现在我想问你几个问题。
Goodbye. Hope to see you again next year.
再见。希望明年再见到你。
What are you talking about?
你在说什么？