Eigenellipse
本征椭圆; 特征椭圆
🗣️ 情景例句
Let's see. Oh, welcome home.
让我看看。噢， 欢迎回家来。
Were it left to me to decide whether we should have a city without bikes or one without cars.
如果让我来决定我们要一个没有自行车的城市，还是要一个没的汽车的城市。
What's that, Jim? Is it a picture?
吉姆，那是什么？一张照片？