Eigenellipse
本征椭圆; 特征椭圆
🗣️ 情景例句
You didn't ruin my day, Dad.
你没有扫我的兴， 爸爸。
He that would eat the kernel must crack the nut.
要把果仁吃，就得碎果壳。
His words are strongly impressed on my memory.
他的话深深地铭记在我的心头。