歌词解析:

1．Yesterday，all my troubles seemed so for away.
　　= Yesterday，I didn't seem to have any troubles，which were for away from me．
　　昨天，所有烦恼似乎很遥远。
　　yesterday：此处并非就指the day before（前一天），而是指“过去”、“往日”、“以前的时光”等。
2．Now it looks as though they're here to say.
　　= Now it looks as if all my troubles stay with me．
　　　今天，烦恼仿佛缠绕着我。
3．Oh，I believe in yesterday.
　　噢，我信奉昨天。
　　believe in 相信（人格、价值）的存在
４．Now I long for yesterday.
　　= Now I look forward to yesterday．
　　现在我盼望昨天。
　　long（动词）意为：渴望，切盼（常与for或者to搭配）
　　long for + 名词 = long to + 动词原形意为：渴望，切望
　　例：The people of the world long for the peace．
　　　　全世界人民渴望和平。
　　　　Most people long to live peacefully.
　　　　大部分的人渴望和平