Biellipticity
双椭圆率
🗣️ 情景例句
I think the problem can be gotton over without too much difficulty.
我认为问题不难解决。
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
What do you do for relaxation?
你做什么消遣？