Characteristic quadratic form
[计] 特征二次型
🧩 词语组成解析
characteristic
[,kærəktə'rɪstɪk]
adj. 特有的;独特的;表示特性的;显示…的特征的;
n. 特性，特征，特色，[数]（对数的）首数;独特性;性质;
character性格，品质+istic表形容词 →表示特性的
a. 二次的\\nn. 二次方程式
🗣️ 情景例句
That's not a hobby, you've just brought your work home with you!
那不是爱好，你只是把工作带回家而已。
Generally speaking, a contract cannot be changed after it has been signed by both parties.
一般来讲，合同一经双方签订就不得更改。
Well, that pair looks nice. How much do they cost?
嗯，那双看来不错。多少钱？