Vacuum cavity
[医] 真空腔
🧩 词语组成解析
🗣️ 情景例句
Anything particular you want to know? Let me hear about it.
有什么特别问题你需要了解吗？说来让我听听。
When you're down and blue, go to a comedy.
你灰心丧气的时候，去看看喜剧。
Let me know when you are ready to order again.
那么需要再订货时，请与我联系。