Vacuum cavity
[医] 真空腔
🧩 词语组成解析
🗣️ 情景例句
So that we can repaint it.
好让我们可以重新粉刷。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
I meant to tell you yesterday, but you were not in your office.
我原想昨天告诉你的，但你没在办公室。