比较级： more unfortunately
最高级： most unfortunately

Things unfortunately aren 't so black and white .

不幸的事不是那么黑色和白色。

Unfortunately , this is all so much theory .

可惜所有这一切都停留在理论层面。

Unfortunately , it was all built on a lie .

不幸地是，一切都建立在谎言之上。

Unfortunately the rehabilitation of released prisoners can also be expensive .

不巧的是，对刑满释放人员的改造同样代价高昂。

Unfortunately , they inspire many people .

遗憾地是，依然给许多人以启示。