Electroultrafiltration
电超滤作用
🗣️ 情景例句
Oh, let's see. It'll be about 3:30 before we have anybody free.
哦，让我想想。大概要到3：30我们才有空。
No matter what comes up, don't sound nervous.
不论发生什么事情，你也不要显得紧张。
I feel rather ashamed.
我感到很不好意思。