《youthful days》的詞曲作者是日本樂隊 mr children。以下是部分歌詞：
When I was young I fell in love with a beautiful woman,
她的美讓我跌入情網 我年少時的心動
Now I see that was the day that I lost my senses.
現在我看見 那是我喪失理智的一天
And she smiled at me and I didn't understand.
她對我微笑 我卻不明所以
But I don't really mind, because now I have everything I ever wanted.
但我也不太在意，因為現在我有了 我一直以來想要的每一切
It was youthful days, we used to run and hide.
曾經的青春時代，我們曾經逃跑隱藏
We thought we could take on the world.
我們認為我們可以接管世界
But we only took it in our hands and then we had to leave it there.
但最後我們只會輕輕拿起它，然後必須讓它留在哪裡
And it's so easy to give up when things get hard.
當事情變得困難時輕易放棄是非常容易的
And we think that there's no hope left, but we're wrong.
我們認為沒有了希望，但我們是錯的
Because now I have everything I ever wanted.
因為現在我有了 我一直以來想要的每一切
It was youthful days, we used to run and hide.
曾經的青春時代，我們曾經逃跑隱藏
Now we look back on those days with nostalgia.
現在我們懷著思戀回顧著那些日子
But there's still so much left to do.
但還有許多事要做
We still have youthful days, they will never fade.
我們還有青春時代，它永遠不會褪色
So let me hold you like I used to do,
所以讓我像以前一樣抱著你
And we'll stay like this forever.
我們將永遠這樣保持著
It was just youthful days, we had no idea.
只是青春時代，我們一無所知
Now I'm happy just to remember those days.
現在我記得那些日子就很開心
歌詞如上，供您參考。