Pleuroblastic
具侧生泡囊的
🗣️ 情景例句
Come in please, and take a seat.
请进。请坐。
No matter what comes up, don't look back.
不论发生什么事情，你也不要回头看。
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，