Encyclopeadia
n. 百科全书
🗣️ 情景例句
What do you think?
你觉得呢？
Like cures like.
以毒攻毒。
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，