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
Dad, you got one, too!
爸爸， 你也钓到一条！
He was anxious about his son's safety.
他担心他儿子的安全。
Let 's go out and have a look at it.
走，我们去看看？