- lead-in
 - ['li:d'in]
 - n. 导入;天线引入线;与广告播放有关的节目
adj. 引入的 
参考例子
           - 1.Lead-in: Talk about the names of your favorite band, book and movie.
 - 让学生说说自己喜爱的乐队组合、书籍、电影的名字,进入话题。
 
- 2.Syllabus of Building Programming Experience:A Lead-In to Structure and Interpretation of Computer Programs.
 - 获取编程经验:电脑程序的结构和编译的预备课程教学大纲。
 
- 3.The company concentrates on the development of the lead-in correspondence equipments and the electronics information product and produce, sell, serves.
 - 公司致力于无线通信设备及电子信息产品的研发、生产、销售及服务。
 
英文解释
           - n.
 - 1.the introductory section of a story
 - 2.wire connecting an antenna to a receiver or a transmitter to a transmission line
 
网络释义
               - Lead-in
 - 导入; 引入线; 天线引入线; 导入区;
 
- lead-in clamp
 - 引入线夹; 引入线夹,输入接线柱; 释义:输入接线柱;
 
- lead-in spiral
 - 引入螺旋线; 输入磁带,(唱片)引入纹槽;
 
- lead-in plate
 - (电弧)引入板;
 
- lead-in cable
 - 引入电缆; 前导段;