Clappet (valve)
[化] 止回阀
🧩 词语组成解析
[建] 止回阀
🗣️ 情景例句
Thanks a lot!
多谢了！
Love is like the moon; when it does not increase it decreases.
爱情像月亮，不营即亏。
I'm mending a clock.
我在修表。