Cbsa
abbr. cationized bovine serum albumin 阳离子化牛血清白蛋白
🗣️ 情景例句
You've been a very helpful.
你帮了大忙。
Man is to man either a god or a wolf.
人与人交往，不是上帝就是狼。
What's up?
怎么了？