Eigenellipse
本征椭圆; 特征椭圆
🗣️ 情景例句
Let's finish eating,
我们赶紧吃完。
Which umpire will referee the baseball game?
不知道哪一个裁判要执法这场棒球赛？
Though he was reluctant to do so at first, we eventually persuaded him to take us.
一开始，他很不愿意，但经劝说，终于同意了。