Pecvd
等离子[体]增强CVD
🗣️ 情景例句
You don't?
你没打？
Now, ladies and gentlemen, I'd be happy to answer any questions that you might have.
各位女士各位先生，现在你们有任何问题我都乐意答复。
Do you know what they are?
你知道他们是干什么的吗？