Respirability
n. 适合呼吸, 能呼吸
🗣️ 情景例句
I'm glad to help.
我很乐意帮忙。
Every advantage has its disadvantage.
有利必有弊。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，