Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
If you had your choice of all the places in the world.
假如你可以选择世界上的任何地方。
Every dog is a lion at home.
夜郎自大。
This time he pointed to the lake.
这次他用手指了一下那个湖。