Derivative spectrum
[化] 导数光谱
🧩 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
By plane?
坐飞机来？
He that would eat the kernel must crack the nut.
要把果仁吃，就得碎果壳。
So he couldn't buy himself lots of good things. But he had lots of friends instead.
所以他不能给自己买很多好东西。可是他却有许多朋友。