🗣️ 情景例句
When and what university did you graduate from?
你何时从哪所大学毕业？
It's better than nothing.
总比没有好。
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