事实上的英文短语有：
1、 in fact
But was it, in fact, a hideous goof?
但其实这真的是很可笑的错误吗？
2、As a matter of fact
As a matter of fact, this could be rather amusing.
事实上，这可能相当有趣。
3、 in truth
She laughed and chatted but was, in truth, not having much fun.
她虽然又是笑又是侃，但实际上玩得并不开心。
4、in reality
Outwardly she seemed confident but in reality she felt extremely nervous.
表面上看，她显得信心十足，而实际上她紧张得要命。
5、in point of fact
Now in point of fact, I think that is what he meant.
实际上，我认为他的意思就是这个。
