Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
Railroad stations or airports--Grandpa always tells us he'll get here by himself.
无论是火车站还是机场，爷爷总是说他会自个儿设法到这 。
Don't you get it?
你懂不懂啊？
When did they leave this area?
他们什么时候离开这里？