Paser
[医]对氨水杨酸颗粒剂<抗结核药>
🗣️ 情景例句
Why?
为什么？
Which one is easier?
哪一个是较简单的？
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