Ceratinase
[化] 角蛋白酶
🗣️ 情景例句
They had no way to communicate directly with Kurt.
他们无法和库尔特直接联系。
Joy and sorrow are next-door neighbours.
是喜是忧难以分。
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？