Protones
[化] 水解鱼精蛋白
🗣️ 情景例句
I'll come and give you a hand tomorrow.
我明天来帮你忙。
I know the boy whose father is a dentist.
我知道那个男孩的父亲是牙医。
Are you going to be a sailor when you leave school?
你毕业后打算当海员吗？