Eukeratin
优角蛋白
🗣️ 情景例句
Mr. Carlson will be with you shortly. Carlson
先生不久就可以见你。
Which one is more economical?
哪一个是比较经济的？
we'll be poor again.What'll we do then?
我们又会变穷的。那时我们怎么办呢？