Collacin
[医] 胶质素(皮肤胶样变性时产生)
🗣️ 情景例句
In my opinion, winter in Beijing is not very cold.
我觉得北京的冬天不是特别冷。
You're asking for it.
自讨苦吃。
Your English is improving little by little.
你的英语正在渐渐提高。