留学解答资讯网：和你们在一起是最幸福的时光。

It is the happiest days together with you.

youdao

和你们在一起是最快乐的时光。相约20年在哈佛。

The happiest time is when we were together. Meet at Harvard 20 years later.

youdao

和你们在一起是最快乐的时光。让我们相约20年后在哈佛大学。

The happiest time is which is shared with you. Let's call it a date to meet in Harvard University 20 years later.

youdao