In the song,a man named Charlie has to ride forever because he does not have enough money to leave the train.

VOA: special.2010.01.25

because you're going to do it with a song, more words, a little more rhythmic and a little easier to put together.

因为你会用歌曲和更多的歌词来练习发音。这样整合起来会更有节奏感、更容易。

英语学习技巧 - SpeakingMax英语口语达人