Procollagen
原骨胶原
🔁 扩展释义
【化】 前胶原
🗣️ 情景例句
We haven't had any complaint of this kind. Is there any evidence.
我们还从未听过这样的抱怨。有什么证据呢？
Night fell quickly.
夜色很快降临。
Bleriot set off half an hour later.
半小时后便正式出发了。