Polyampholyte
聚两性电解质
🗣️ 情景例句
All of this comes before eating. OK?
这些都是在吃之前先得做的事 ，知道吗？
I will be shopping in New York in June.
我将在六月份在纽约购物。
The cave might never have been discovered has not the entrance been spotted by the distinguished French pot-holer, Berger.
若不是法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。