Precollagen
[化] 前胶原\\n[医] 前胶原, 原成胶
🗣️ 情景例句
I beg you pardon?
对不起，你说什么？
No pleasure without pain.
没有无痛苦的欢乐。
If I had been, I would not have been able to get home for lunch. '
如果真戴着它，我现在就不能回家来吃午饭了。”