Epicycloids
(epicycloid 的复数) n.[数]圆外旋轮线, 外摆线
🗣️ 情景例句
That's very well.
非常满意！
An ox is taken by the horns, and the man by the tongue.
牛因有脚而被抓，人因有舌而遭殃。
We should have been given the large quantity price.
你应该开大宗折扣价才是。