When I was your age
在我像你这么大的时候
When I was a kid
在我还是个孩子的时候
In my day
想当年
Those were the days!
往日的情怀呀！
In the past
在过去

It's no use having regrets.You can't go back!
后悔是没有用的，回不到过去了！
She lives in the past. She still thinks her ex-boyfriend.
她活在过去，还是想着过去的男朋友。
If you could turn the clock back, would you actually change anything?
如果时光可以倒流，你想改变什么呢？
It is simple no good living in the past because you can't go back!
活在过去不好，因为你回不去的。
Present
现在
Big present
最好的礼物