The first part introduction introduces the purpose and significance of this topics, content, research methods and main problem to be solved.

第一部分引言主要介绍了本文选题的目的和意义、研究内容、研究方法、拟解决的主要问题。

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The paper was divided into six parts:The first part, Introduction.

全文分为六个部分：第一部分，前言。

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The full text is divided into four parts altogether:First part, Introduction.

全文共分四部分： 第一部分，导言。

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The number of students doubled between 2000 and 2005, due in part to the introduction of free primary education.

VOA: standard.2010.02.25

But as part of a more rigorous introduction to understanding how the machines work and writing programs at this lower level.

作为一种,理解电脑工作机制,和在低平台上编程的入门方法。

哈佛公开课 - 计算机科学课程节选

Last year, says the bank, real disposable incomes scarcely grew (in part because the introduction of self-assessment brought about an unexpected increase in tax payments).

ECONOMIST: The housing market

Average new car mileage in the U.S. has increased up to 24.5 miles per gallon in the last year, a large part due to the introduction of electric and hybrid electric cars.

FORBES: Connect

Further 20mph zones could be introduced in other parts of the city as part of a phased introduction over the next four years but those decisions are not being taken at this stage, the council said.

BBC: Brighton and Hove city centre to become 20mph zone