事实上，我曾经住在他隔壁。

___As ___a ___matter ___of ___fact, I used to live next door to him.

事实上，我并不太喜欢尼斯。

___As ___a ___matter ___of ___fact I didn't enjoy Nice much.

事实上，是她解决了问题。

___As ___a ___matter ___of ___fact, she is the one who solved the problem.