Paracourse
并行航线
🗣️ 情景例句
I think I am rather outgoing. I enjoy working with others. But sometimes I'll be alone.
我想我较外向。喜欢和人合作，有时也想独处。
Who will not keep a penny, shall never have many.
不积少，不会成多。
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，