The purpose of Chapter One and Two is to introduce the background and propose the issue;

本文第一、二章的任务是进行背景描述和提出问题。

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However for the purpose of Chapter 3 withholding you may still be treated as a nonresident alien.

如果你们做了选择，你和你的配偶被等视为居民，在一整税务年里，作联邦收入报税和工资的联邦税预扣。

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Purpose and overview of this chapter.

本章的目的和内容概述。

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Chapter number one, in the first 10 or 15 years, the entire purpose of that first chapter is to take on a rocket fuel.

FORBES: The Three Phases of Careers - Where Are You and Where Should You Be?