Poid
形心(曲线), 拟正弦线, 膺正弦线, 瞬心轨迹
🗣️ 情景例句
He showed no consideration for his wife.
他从不体贴他的妻子。
No, thank you. But it was very kind of you to offer.
不用了，谢谢。承蒙您好意提出。
Just pencil in the changes and we'll retype it.
修改的地方请用铅笔，我们会重打。