Derivative method
[经] 诱导法, 引伸法
🧩 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
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
A guilty conscience needs no accuser.
贼胆心虚。
But none of them has been turned to stone yet!
但到目前为止还没有一个变成石头呢！