Pericycloid
週摆线
🗣️ 情景例句
Excellent job.
做得太棒了。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
At the base of the gold cap, the words 'made in the U.S.A' had been nearly inscribed.
笔帽下方整齐地刻有“美国制造”字样。