Cristobalite
n. 方石英\\n[化] 方英石
🗣️ 情景例句
After you.
请先走。
He likes playing the eletronic organ.
他喜欢弹电子琴。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，