Peritrochoid
外摆线圆
🗣️ 情景例句
beat its rival Horace Mann in baseball today ...
在今天的棒球赛中打败了对手Horace Mann队。
I learned grammar this afternoon.
我今天下午学语法。
We are so familiar with the fact that man ages,
我们对人总是要衰老的现象并不陌生，