歌词解析：

1．I wonder should I go or should I stay.
　　=I wonder whether I should go or stay.
　　我不知该走还是该留
2．The band had only one more song to play.
　　= The band would play the last song.
　　乐队只剩下一首歌要演奏。
　　play在此是“演奏”的意思；
　　song在此是“舞曲”的意思。
3．And then I saw you out the corner of my eye
　　= And then I saw you out of the corner of my eye
　　out the corner of my eye:从眼角余光
　　例:She said her boss doesn't like her and often looks at her out the corner of his eye.
　　她说她的老板不喜欢她,经常白眼看她。
4．I had the last waltz with you
　　=I danced with you to the last piece of music of waltz.
　　我与你，跳了最后这一曲华尔兹。
5．a little girl alone and so shy.
　　=As I saw you, I found you to be a little girl who was alone and so shy
　　=As I saw you, I found you to be a little girl without companion and not bold enough to invite others to dance.
　　当我看你时,我觉你是个既孤单又害羞小姑娘。
６.The last waltz should last forever
　　=The last waltz should go on and on.
　　这一句中的第一个last是＂最后的＂的意思．
　　第二个last是“持续”、“继续”的意思。
　　例: The film lasted two hours.
　　那部电影演了两小时。
７．And then the flame of love died in your eyes
　＝And then the flame of love disappeared from your eyes　
　　the flame of love:爱的火焰
　　the flame of hatred:恨的火焰
　　the flame of jealousy :妒火