Machs
(Mach 的复数) n. 马赫数, 马赫\\n[计] 机器检查
🗣️ 情景例句
Thank you.
谢谢。
Beg from beggers and you'll never be rich.
向乞丐乞讨，永远发不了财。
I'm worried that something has happened to her.
我担心她出了什么意外。