Phyllantidine
油柑替定
🗣️ 情景例句
Pretty good.
挺好的。
Which foot hurts?Is it the left one?
哪个脚受伤?是左脚？
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