Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
Most of the building in this town are rather unattractive, but this church is an exception.
这个城市中大部分建筑都不太好看，但这座教堂是个例外。
If he doesn't stay, who will?
如果他不，谁要留下？
The dancer ran in a straight line, wagging from side to side.
跳舞的蜜蜂左右摇摆地沿直线飞。