Amberplex
离子交换膜
🗣️ 情景例句
I don't know how to thank you, Susan.
我不知道如何谢你， Susan。
It's out of the question.
这是不可能的。
I told her that either I would have to buy a new mower or let the grass grow.
我告诉她，要么买一台新割草机，要么让草长下去。