Polycysteine
[化] 聚胱氨酸
🗣️ 情景例句
I'm almost ready here.
我快要准备就绪了。
Do you think you'll go to the movies tomorrow night?
你认为你将在明天晚上去看电影吗？
This price is quite a bit higher than it was last time.
这次的价格比上次要贵了一些。