Biellipticity
双椭圆率
🗣️ 情景例句
it takes a little bit of money to run a campaign.
竞选活动需要花一些钱。
You're thinking too much.
你也未免想太多了吧！
The bison skins were sent by rail to cities to be sold.
野牛皮用火车运到城里出售。