Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
I mean, there seems to be something to celebrate all the year round.
我的意思是，好像一年到头都要忙着庆祝似的。
Never!
决不！
It's worth every penny of it.
它确确实实值这么多钱。