Epicycloids
(epicycloid 的复数) n.[数]圆外旋轮线, 外摆线
🗣️ 情景例句
Sure. Put it back in your room, and we'll hang everything up later.
当然。将它放回你的房间里， 过一会儿我们来一件件挂起来。
Now, I'd be happy to answer your questions.
现在，我乐意答复你们的问题。
He married my aunt in 1971, so Clare would have been five years old.
他1968年与我伯母结婚，那么克莱尔应该已经5岁了。"