Precollagen
[化] 前胶原\\n[医] 前胶原, 原成胶
🗣️ 情景例句
Well, don't work all night.
好啦， 别通宵工作。
To promise and give nothing is comfort to a fool.
允诺而不费什么是给愚蠢人的安慰。
What's the time?
几点了？