这时我一生中最难忘的一天。

This is the most memorable day of my life.

youdao

今天，是我最难忘的一天，也是我最快乐的一天。

Today, I am the most memorable day is my happiest day.

youdao

最后我不得不回去了，这是我人生中最难忘的一天。

Finally I had to go back. It was an unforgettable day in my life.

youdao

最后我不得不回去了，这是我人生中最难忘的一天。

Finally I had to go back. It was an unforgettable day in my life.

youdao