C5
[医] 溴化五烃季胺, 溴化次戊基三甲季铵
🗣️ 情景例句
My visa is multi-entry; it allows me to exit the country and then re-enter, as ofter as I like.
我的签证是往返签证，我可以随便进出这个国家。
What's goes on here?
什么事？
Competition between ourselves, person against person, community against community,
然而人类之间的竞争，人与人，团体与团体，