Polyarteritis
n. [医]多动脉炎
🗣️ 情景例句
There's been another scandal in the Royal family.
皇室又出丑闻了。
He yanked out my ladder.
他使劲地拉了我的梯子。
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，