Polyampholyte
聚两性电解质
🗣️ 情景例句
The bright young man can get ahead quickly in the tourist industry.
这位聪明的年轻人在旅游世界很快获得成功。
A cock is bold on his dunghill.
站在粪堆上，公鸡也称王。
I had just lost $50 and I felt very upset.
我刚刚丢了50英镑，感到非常烦恼。