Polyarteritis
n. [医]多动脉炎
🗣️ 情景例句
when Susan and Richard were babies?
当Richard和Susan还很小时？
The paint bucket fell down on his head.
油漆桶扣在了他的头上。
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