Collacin
[医] 胶质素(皮肤胶样变性时产生)
🗣️ 情景例句
You're so nice!
你真好！
When it started raining, I was playing outside.
当雨开始下的时候，我在外面玩。
You've got lots of old buildings in your country.
你们国家有许多古老的建筑物。