Derivative operator
[计] 导数算子
🧩 词语组成解析
derivative
[di'rivətiv]
n. [数]导数，微商;[化] 衍生物，派生物;[语]派生词;
adj. 衍生的;导出的;拷贝的;
🗣️ 情景例句
There are a lot of beggars on the street, how can we help them?
街上的乞丐那么多，我们怎么能帮助他们呢？
He tricked me. I hate him.
他耍弄了我，好恨他。
I'm very sorry. I borrowed a book from the library two weeks ago.
“很对不起。两周前我从图书馆借了一本书。