Pericycloid
週摆线
🗣️ 情景例句
John proposed marriage to Helen.
绚翰向沦论求婚。
One cannot always be a hero, but one can always be a man.
人难一世称雄，但可一生为人。
Late? No, you aren't. You're early. It's Sunday today !
晚了？没有啊！你挺早的呢，今天是星期日。