Difference matrix
[计] 差分矩阵
🧩 词语组成解析
🗣️ 情景例句
He keeps good company.
他和好人来往。
Omelets are not made without breaking eggs.
有失才有得。
Suddenly, a middle-age lady got on the train and sat opposite Sally.
突然，一个中年妇女上了火车，坐在萨莉的对面。