Pili
[醫] 毛, 發
??? 情景例句
I have a new math program, and I want to learn how to use it.
我有一個新的數學程式 我想學習怎樣用。
What will you do this weekend?
這周末你將干什么？
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我們真能看到的運動軌跡，諸如巖石中一個沙粒分子