Ultrahigh vacuum(hhv)
[化] 超高真空
🧩 词语组成解析
a. 超高的,特高的
🗣️ 情景例句
You're just wasting your breath.
你在白费口舌。
I get into bed at about 11:30 and go right off to sleep.
我大约在11:30上床并且睡觉。
Put them away, please. You must look after your things.
把他们放好。你得能看好自己的东西。