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
Too late now.
现在太迟了。
Do you ever go swimming on the weekend?
你曾经在周末去游泳吗？
By bicycle.
骑自行车去。