1、The joke served as a lead-in to a discussion of more serious matters
這個(gè)笑話(huà)是為了引入討論更嚴(yán)肅的問(wèn)題

2、Tell a story to ss. Lead-in the new sentences:This is an apple. /That's a pear.
通過(guò)講故事，引入新句型，并在講的過(guò)程中適時(shí)復(fù)習(xí)水果名稱(chēng)。

3、The joke served as a lead-in to a discussion of more serious matters.
這個(gè)笑話(huà)是為了引入討論更嚴(yán)肅的問(wèn)題

4、Lead-in CAPP system based on SolidWorks feature model
基于Solid Works特征模型的導(dǎo)入式CAPP系統(tǒng)

lead-in翻譯

n. 天線(xiàn)引入線(xiàn), 導(dǎo)入【電】 引入線(xiàn) 詳情