introductory chapters/paragraphs/remarks
序篇；引言段；开场白
introductory courses/lectures
基础课程╱讲座
a special introductory price of just $10
仅 10 元的优惠上市价
This introductory offer is for three days only.
本试销优惠只为期三天。
1.介绍的;导言的,绪言的;预备的
1.providing basic information about a subject, course of study, etc.
2.an introductory offer or price is a low price that is intended to encourage people to buy a new product
1.The company decided to set up a low introductory price for the new product.
公司决定在投放新产品时，以低价策略打开市场。
2.Students in introductory economics courses learn that the burden of a tax does not necessarily stay where the Congress chooses to put it.
刚刚开始学习经济学的学生都会首先学到一个理论：国会所确定的税收负担并不是必须的。
3.At the top and bottom of your sheet of paper, write a word or two for your introductory and ending sentence.
利用纸张的天顶和下缘部份，书写几句你的开场白和结语。
4.I even sat next to a woman on a plane a couple of months ago who offered me a free introductory session.
甚至在几个月前一次乘坐飞机时旁边的一位妇女主动为我提供免费介绍课程。
5.But it was the Regent's behavior at the introductory summit sessions that finally convinced him to take matters into his own hands.
但是，瑞金特在高层预备会上的表现让他决定还是自己掌控事态为妙。
6.Introductory Prayer: Lord Jesus, I believe that you are the Son of God who came into this world to save us because you love us.
祈祷开端：主耶稣，我坚信你是因为爱了我们才成为天主子。
7.In an introductory passage, he explains: "I was a cog in his machine for a certain period, one of many cogs, that and nothing more. "
在导言中他如此解释道：“我只是某段时期内他机械装置上的一个齿轮，众多齿轮的其中一个，除此之外，别无其他。”
8.Once you're comfortable with the introductory section you're ready to pe into the section on model construction.
一旦您熟悉了这个介绍部分您就准备好可以进入模型构造部分了。
9.I spend my time online at job boards, researching companies, writing introductory emails and if I'm lucky returning a phone call or two.
我在网上花时间浏览招聘网站、研究公司、写自荐电子邮件，如果我够幸运，还会接到一、两个电话。
10.A few weeks later, for Valentine's Day, she surprised me with an introductory flight at a local flight school.
几周后的情人节那天，妻子给了我一个惊喜：当地飞行学校的驾驶入门课。