Colloidin
[医] 胶(体)变(性)质, 胶体素
🗣️ 情景例句
I'm a friend of Pete's.
我是Pete的朋友。
Would you please make my reservation to Chicago for tomorrow?
请帮我预订明天去芝加哥的座位好吗？
I looked at my watch.It was true.
我看了一下我的手表，果真如此。