lead-in
英 [ˈliːd ɪn]
美 [ˈliːd ɪn]
n.  (主题、故事、表演等的)引子,介绍,开场白
牛津词典
noun
- (主题、故事、表演等的)引子,介绍,开场白
an introduction to a subject, story, show, etc. 
柯林斯词典
- N-COUNT 引子;前奏;开场白
Alead-inis something that is said or done as an introduction before the main subject or event, especially before a radio or television programme.- They were thrilled, finally, to have a decent lead-in for their 9 a.m. local programs.
终于,他们为上午9点播出的本地节目有了一段像样的片头而高兴得不得了。 
 - They were thrilled, finally, to have a decent lead-in for their 9 a.m. local programs.
 
英英释义
noun
- wire connecting an antenna to a receiver or a transmitter to a transmission line
 - the introductory section of a story
- it was an amusing lead-in to a very serious matter
 
 
双语例句
- This thesis has studied the classroom lead-in in senior high school English class.
本文主要针对高中英语课堂导入进行了实验研究。 - Lead-in is the first step in English text teaching and is also an art of teaching.
导入是英语课文教学的第一步,也是一门教学的艺术。 - Among several teaching links, lead-in is one of the most important parts.
其中,“课堂导入”是整个教学环节中十分重要的一个环节。 - Moreover, the explanatory prose is haphazard ( and not infrequently wrong or incoherent& for example, I cannot make heads or tails of the lead-in to the very first example, prime. py).
此外,解释性叙述是随意的(并且经常出错或语无伦次例如,我找不到第一个示例prime.py的介绍的开头或结尾)。 - On the Highlight in College English Teaching& Classroom Lead-in
论大学英语教学的亮点&课堂导入 - Conclusions It is a utility way to enhance oral outpatient clinic management, elevate the quality of treatment and teaching, and decrease the outpatient's complains by lead-in dentist assistant.
结论引入牙医助理是加强口腔门诊管理,提高医疗和教学质量,减少病人投诉的有效途径。 - Chain-track combine Writing lead-in area
链轨〔履带〕式联合收获机正在写入导入轨 - To employ this method during the part of Lead-in in English listening class may arouse the students enthusiasm and tap their listening potentialities to improve their listening comprehension.
英语听力教学中的听前导入可以充分使用该方法以调动学生听力学习的积极性,挖掘学生的听力潜能,提高听力理解能力。 - The experimental results show that the bolt can lead-in the nut successfully, and verify the reasonableness of bolt lead-in device mechanism design.
在螺栓引入装置试验样机上进行螺栓引入试验,结果表明螺栓能成功引入螺母,验证了螺栓引入装置结构设计的合理性。 - These are all the lead-in numeral correspondences of the normal regulations hard solve of.
这些都是常规的无线数字通信难以解决的。 
