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adj.引导的，介绍的；开端的
1、contradictory───adj.矛盾的；反对的；反驳的；抗辩的；n.对立物；矛盾因素
2、introductorily───介绍性地
3、introducer───n.介绍人；创始者；插管器
4、introductoriness───介绍性
5、interlocutory───adj.中间的；对话的；对话体的
6、introduction───n.介绍；引进；采用；入门；传入
7、introductive───adj.前言的；介绍的（等于introductory）；序文的
8、introductions───n.说明，介绍；引入
9、interdictory───adj.禁止的；停止的
1、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。
2、This notice says that all the introductory marketing classes are closed.───这一通知说，所有的市场营销入门课程都结束了。
3、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。
4、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YeSu，我坚信你是因为爱了我们才成为TianZhu子。
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、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。
7、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。
8、Introductory exercises and in-game aides like peekaboo, which compares top-scoring solutions with yours, help novices get up to speed.───介绍性练习和游戏中的助手，例如“peekaboo”，可将得分最高的解决方案与您的解决方案进行比较，帮助新手快速入门。
9、An introductory sentence for a brief summary of the passage is provided below.───下面这个介绍性句子简要总结了这篇文章。
1、The chairman opened the ball with a few introductory remarks upon the items on the agenda.