Eukeratin
优角蛋白
🗣️ 情景例句
I'd like to make a couple of proposals to improve the whole situation.
为了改善整个局面，我们提出若干建议。
What's the circulation of this magazine?
这杂志发行量怎么样？
Have you had any breakfast yet?
你吃过早餐了吗？