differential是一个雅思常考词汇，这个词的常用解释为adj. 有差别的，这个词在很多英文原版小说中怎么应用呢，今天小编就带您了解一下。
在辛克莱·刘易斯的《阿罗史密斯》里，有这样的句子出现：
-- By the end of his first nine months at McGurk, Martin had reviewed trigonometry and analytic geometry and he was finding differential calculus romantic.
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