Apicitis
[医] 根尖炎
🗣️ 情景例句
Leave nothing to chance.
做任何事情都要有把握。
That's a tough question to answer.
那是一个很难回答的问题。
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