Eigenpolynomial
特征多项式
🗣️ 情景例句
I was faced with a new problem.
我面临了新的问题。
His leg is wounded, Does it hurt?
他的腿受伤了，疼不疼？
People travelling long distances frequently have to decide whether they would prefer to go by land, sea, or air.
出远门的人常常需要决定是走旱路、水路，还是坐飞机。