fact和in？

兩個都是副詞，都表示事實上、實際上。但查一下英文釋義可能會更清楚一些。

In reality: used to imply that one would expect the fact to be the opposite of that stated; surprisingly. 這個常用來糾正前面所述的相反的事實。例如： This problem should not occur, but in reality it dose. 而In fact: in reality or actuality. 更偏向于現(xiàn)狀，適合陳述事實，例如：In fact, this problem should not occur.