Coplanar
[计] 共面的
🗣️ 情景例句
Thank you.
谢谢你。
Books,like friends,should be few and well chosen.
书籍如朋友，宜少宜精选。
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子