如果收信人不知道你，你需要在第一段中进行自我介绍。
Introduce yourself in the first paragraph, if the recipient does not already know you.
高中学生学习过第一段的介绍应该是概括性的。
Students learn in high school that their introduction should begin with something general.
配合影像的是一段关于该景点的简短介绍。
Alongside the imagery is a short piece of text about each site.
我将向您介绍代码，一次介绍一段。
我每次介绍众多Emacs定制中的一段。
I present many of the Emacs customizations one piece at a time.
至此对scraper的介绍就告一段落，接下来将深入地了解一下Webspider的构建。
Now I'll leave scrapers and dig into the construction of a Web spider.
据他的表哥纳达尔·哈桑介绍，最近一段时间哈桑少校因为即将被派往阿富汗而表现出深深的不安。
He had also more recently expressed deep concerns about being sent to Afghanistan.
这篇文章每一段的中心意思已经在各段的第一句话里介绍了。
The topic of each paragraph is this article has been introduced in its first sentence.
通常说来，用冒号介绍一段长的引用语。
这首诗包含了两段介绍的段落。
自我介绍：在第一段写上这封信的目的。
Introduce Yourself: State your letter's purpose in the first paragraph.
自俺介绍：在第一段写上这封信的目的。
Introduce Yourself: Sthad your letter's purpose in the first paragraph.
今天我将给大家播放一段视频，来介绍一下新疆的美食。
Today I will play a video to introduce something about the cate of Xinjiang.
本文将重点介绍预应力钢结构五阶段设计、施工、测试及分析。
This paper introduces mainly the five stage design, construction, measurement and analysis of the structure.
介绍国外PP嵌段共聚物的开发动向，生产技术及国内市场需求。
Introduce the development trend, production technique and domestic market demand of PP block copolymer.
自俺介绍：在第一段写上这封信的目的。
Introduce Yourself: State your letter's purpose in the first paragraph.
说一小段话介绍你的房间。
而且，这本书还用每个年龄段的孩子能接受的方式来介绍美国的历史和公民教育。
It has also helped us introduce some U. S. history and civics in an age appropriate manner.
我生命中的每一段愤怒插曲都一一出现，介绍自己。
One by one, my life's every incident of anger rose and made itself known.
自我介绍：在第一段写上这封信的目的。
Introduce Yourself: State your letter "s purpose in the first paragraph."
最后，给学生介绍有利于其身心健康的好习惯。第三段总结呼应首段内容。
Finally, these courses also introduce good habits which are conducive to mental and psychological health.
自俺介绍：在第一段写上这封信的目的。
Introduce Yourself: State your letters purpose in the first paragraph.
文章第二段明确介绍了人们现在比过去长寿的原因。
理论模型中，介绍了永续增长模型、两阶段增长模型、三阶段增长模型；
Theoretical model, we introduce the Gordon growth model, two-stage growth model, three-stage growth model;
第一段主要介绍了街头艺术在全世界都很受欢迎。
第四段介绍了太阳在能源方面的重要性。
第四段介绍了太阳在能源方面的重要性。
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