Selachine
鲨白化素
🗣️ 情景例句
What are you talking about?
你在说什么呀？
I don't know how to do that.
我不知道该怎么打。
Good. But we need some more. Uncle Wang is coming to supper.
好的。但我还要更多点。王伯伯今天来吃晚饭。