Polycysteine
[化] 聚胱氨酸
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
Your question is how we developed our product?
你的问题是我们是如何发展我们的产品？
I'll give you a call when we are ready to talk about them.
等我们准备好可以谈的时候，我会打电话给你。