Cycloid
n. 摆线, 轮转线\\na. 圆形的, 循环性格的
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
I haven't nothing to declare.
我没有要申报的东西。
What would you prefer to do?
你喜欢看点什么？