总习惯把一双一对的背影认作你我，总把情歌里的词句当作心情，在离开一个人的时候，我们会怀念，会幻想，所以才有了挽留。

We are always used to reckoning couples of shadow as ours, lyrics in the love songs as our mood. So when leaving someone, we will miss, imagine and thereby redeeming.

youdao

许多时候总是一个人莫名的怀念。

Many times a person is always inexplicable miss.

youdao

当我一个人的时候，甚至和朋友在一起的时候，我总是怀念过去我们在一起的开心日子。

When I am alone, even when I am with friends, I always thought of the old days when we had fun together.

youdao