Semiminor axis
（椭圆的）半短轴
🧩 词语组成解析
🗣️ 情景例句
But you had to be good at math.
但是你数学一定很好。
The greatest fool is he who worries about what he cannot help.
操心无法可想的事是最大的傻瓜。
What did Wang Wei write about in her letter?
王伟在信里写了什么？