turn the clock back
US /tɜːrn ðə klɑːk bæk/
UK /tɜːrn ðə klɑːk bæk/

1.
让时光倒流, 把时钟拨回
to return to a previous time or situation, often to a more desirable one
:
•
If I could turn the clock back, I would have studied harder in college.
如果我能让时光倒流,我会在大学里更努力学习。
•
Some people wish they could turn the clock back to simpler times.
有些人希望他们能让时光倒流到更简单的时代。