Collagens
(collagen 的复数) n. 胶原\\n[化] 骨胶原; 胶原
🗣️ 情景例句
After I finish my homeword, I usually watch TV for half an hour or so.
我做完作业后，通常看半个小时的电视。
I'm sorry, but I can't find the book you lent me.
很抱歉！我找不到你借给我的那本书了。
That's very nice of you.
你真是太好了。