Valving
装设阀门
🗣️ 情景例句
I really mean it.
当然是真的。
It's only a suggestion,and you can do what you please.
它仅仅是一个建议，你能做你喜欢的东西。
Our friends Julie and Jack were there, too.
我们的朋友朱莉和杰克也去了。