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
Just fill out this form for me.
请把这份表填好。
Who is this?I don't recognize your voice.
你是谁？我听不出你的声音。
Thank you very much.
非常感谢。