Inkstone
n. 砚
🗣️ 情景例句
I have always envied your good luck.
我一直羡慕你的运气好。
My coat is yellow.
我的外套是黄色的。
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