Peritrochoid
外摆线圆
🗣️ 情景例句
OK. Since you put it this way. I'll have to comply.
好吧。既然你这么说，我只好同意了。
Excuse me. Could you please tell me how to get to the station?
劳驾，请问到火车站去怎么走？
It is no matter whether you get there early or late.
你早到晚到都没有关系。