Difference matrix
[计] 差分矩阵
🧩 词语组成解析
🗣️ 情景例句
Why don't you look at some houses, Marilyn?
何不去看一看房子呢， Marilyn？
When I had a rest, what were you doing?
当我休息时，你在做什么？
They lived by hunting and by gathering roots, nuts and wild fruits.
他们靠狩猎和采集根茎、坚果和野果为生。