Quadratic form
[计] 二次型, 二次形式
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
🗣️ 情景例句
And a cheeseburger, medium rare,
一份起士汉堡，五分熟
How much is this carpet per square yard?
地毯每平方码要多少钱？
I was able to tell him that he had pulled out the wrong tooth.
我总算有可能告诉他，他拔错了牙。