Polyampholyte
聚两性电解质
🗣️ 情景例句
That's the way.
就这样。
Would anyone like seconds?
谁要换其他的饮料？
That's right. On Friday. I'm going there for the holiday with my parents.
是的，星期五（动身）。我打算到那儿和我的父母一起度假。