Quadratic sum
[计] 平方和
🧩 词语组成解析
a. 二次的\\nn. 二次方程式
sum
[sʌm]
n. 总数;算术;金额;概略，要点;
vt.& vi. 总计;总结，概括;归纳;
🗣️ 情景例句
Well, tell me about it.
那么， 告诉我吧。
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
It was noticed that there were no signs or warnings on the supply lines that ran round the port.
人们这才注意到，铺设在码头周围的供应管道上没有贴标签或告示。