Semimajor
axis(椭圆的)半长轴
🗣️ 情景例句
Have you got any experience in advertising?
你有广告方面的经验吗？
She lost her dignity.
她失去了镇定。
the plentiful supply of food thrown overboard by the crews on the rigs;
钻井平台工作人员抛到海里充足的食物；