Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
That's right.
是的。
To be killed
被杀
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。