Kera
abbr. keratinase 角蛋白酶
🗣️ 情景例句
Yeah!
是啊！
It's none of my business,but I think you ought to work harder.
它是不关我的事，但是我认为你应该努力工作。
You just don't consider anyone but yourself.
你除了自己外从不为别人考虑。