Cassinoid
卡西尼卵形线
🗣️ 情景例句
How many are there in your family?
你们家几口人？
After the play was over,we all wanted to get something to eat.
在戏完了以后，我们都想要吃一些东西。
The English and Maths papers weren't easy enough for me.
英语和数学试题对我来说不很容易。