Partial derivative
[计] 偏导数, 偏微商
🧩 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
We haven't had any complaint of this kind. Is there any evidence.
我们还从未听过这样的抱怨。有什么证据呢？
Sorry, She is out. Shall I take a message?
抱歉，她外出了，你要留口信吗？
All kinds of jobs. There are women police officers, women doctors, teachers, engineers, farmers and so on.
各种各样的工作。有女警官、女医生、女教师、女工程师、女农场主等。