Epicycloid
n. [数]圆外旋轮线, 外摆线
🗣️ 情景例句
Remember to lock your door and windows when you leave the house.
出门前记得锁好门窗。
To iron clothes
熨衣服
Parents would be greatly surprised and deeply touched if they realized how much belief their children usually have in their character and infallibility,
那么家长会大为吃惊和深受感动的，如果家长意识到孩子们通常是多么相信家长的品行和绝对正确，