Ichd
[医][=intracranial Hodgkin's disease]颅内何杰金（氏）病
🗣️ 情景例句
Would you begin, Ellen?
请你开始， Ellen
Go with the flow.
顺其自然。
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