Keratoprotein
[醫(yī)] 角質蛋白
??? 情景例句
Then, in college, I became good at it.
然后， 在大學， 我變得很精于數(shù)學。
Come to me if you're in any difficulty.
有困難來找我。
Kunta wondered why the white people had done this to him.
孔塔不知道白人為什么要這樣對待他。