Selemion
一种均质离子交换膜
🗣️ 情景例句
I would like to check-out now.
我现在就想结账离开。
The doctor said I looked pale and tired.
医生说我看起来苍白和疲倦。
So I will receive and sign it overnight.
那么，我明天就可以收到并且签上名了。