Consider the structure of the first three chapters.
并考虑，前三章的结构。
The author devotes the first three chapters to the subject.
作者用前三章阐述这个问题。
This film is smaller in scale and more straightforward than the first three chapters.
因此这部电影比起同系列的前三部电影，规模较小，情节也比较简单。
Of these three new chapters, the first deals with radar.
在这新的三章中，第一章论述解析几何。
Of these three new chapters, the first deals with radar.
在这新的三章中，第一章论述解析几何。
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