还是没弄懂具体意思,如果你提供个语境,也许会理解得更好……
作为一个介词短语应该是对的吧,动词的话可以用return to summer或fall back into summer……
提供几个句子,不知有没有什么帮助：
1.卡片上的内容将人们带回到过去.
The bottle offers a rare glimpse into the past.
2.（他不要再回到过去的友谊.）
He just doesn't want to fall back into that old friend-ship.
3.时光倒转,让我们回到过去!
Turn back the clock because we're going back in time!