Machs
(Mach 的复数) n. 马赫数, 马赫\\n[计] 机器检查
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
When is the most convenient time for us to meet?
我们什么时候见面最方便呢？
It's between the post office and the hospital.
它就在邮电局和医院之间。