Good introduction: you introduce the topic and answer the question in a simple way.
不错的开头：对话题做了介绍，并简单回答了问题。
Making a brief introduction of the status and purpose of the chosen topic.
简要介绍了所选题目的现状与选题目的。
There is an introduction for the topic design plan and the target also.
同时，介绍了课题设计的方案及指标。
This is a fascinating introduction to the topic.
这是迷人的题目的序言。
This is a fascinating introduction to the topic.
这是迷人的题目的序言。
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