Wesson
韦森
🗣️ 情景例句
You have nothing to worry about.
你没有什么好担心的。
He speaks English fluently.
他讲英语很流利。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，