Semimajor axis
（椭圆的）半长轴
🧩 词语组成解析
axis(椭圆的)半长轴
🗣️ 情景例句
Happy Mother's day!
母亲节快乐。
Great men's sons seldom do well.
大人物的子孙少出息。
How do I control myself? I can't calm down.
我怎能控制我自己？我无法冷静下来。