Cycloids
(cycloid 的复数) n. 摆线, 轮转线\\na. 圆形的, 循环性格的
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
To carry passenger for a fare
收费运送乘客
His cake is three times bigger than mine.
他的蛋糕比我的大三倍。