Valving
装设阀门
🗣️ 情景例句
There are lots of things for her here.
这里有许多适合她的东西。
We are living a meaningful life.
我们过着有意义的生活。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。