Quadratic equation
[计] 二次方程
📖 牛津释义
quadratic equation
(algebra 代数) equation that uses the square (and no higher power) of an unknown quantity, egx2 + 2x
8 = 0 二次方程式（如x2 + 2x
8 = 0）.
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
🗣️ 情景例句
You look bothered. Is there something I can help you with?
看你好像有点烦恼，有什么我可以帮忙吗？
How fast?
多快？
She's very well, too, Helen.
她也很好，海伦。