Polycysteine
[化] 聚胱氨酸
🗣️ 情景例句
There are so many things to consider. There's Michelle.
要考虑的事太多了。首先是Michelle。
I'm glad to meet you.
幸会。高兴见到你。
You know what I'm talking about.
我想你知道我在说什么。