Caseinase
[化] 酪蛋白酶
🗣️ 情景例句
I need to be in the top percentage of my class to study abroad.
为出国留学，我的成绩必须在班里名列前茅。
I have lovely friends.
我有可爱的朋友。
They have nothing to eat.
他们没有东西吃。