李珉宇，孙丹菲，After School,Brownd Eyed Grils歌曲的前奏

李珉宇的《不要相信男人》，孙丹菲的《疯了》，After School的所有歌曲,Brownd Eyed Grils的《怎么办》《My Style》这些歌曲的开头总会有一个英文单词的电音,类似于：listen thought这么一种发音。实在不知道是什么意思，他们也都不是同一公司啊！是同一人作得曲？还是同一个混音师？还是什么意思？谁知道来解答一下哈~谢啦~
（如果没听过的可以找来听一下再帮我鉴定，都还算好听，不会吵你的哈。KRMTV上都有）
这些歌曲的类型都不定，有Pop,Rock,Balled,Dance.但不管怎样都有电音为背景旋律。
listen thought只是取了几个关键点，好像也是Let sound?之类的，反正很短，听不明白

who's run after you? after two month's summer vacation U.S and Japan relations after World War II After all,it's a life long responsibility Let's begin our ciass . Read after me .是什么意思 Let's play football after school,shall we?(同义句) Named after Allan Houston ~since 80s~~ Now is Ray Allen~~ There (has,have )to be some people left in that town after yesterday's flood. list the process of america's territorialexpansion after its independence It may only deviate from its written agreements with TOTO after obtaining TOTO’s permission.