ADV-GRADED 不幸的是;遗憾的是;令人失望的是 You can use unfortunately to introduce or refer to a statement when you consider that it is sad or disappointing, or when you want to express regret. 不幸的是;遗憾的是;令人失望的是 [feelings]
Unfortunately, my time is limited.
可惜的是,我的时间有限。
Unfortunately for the Prince, his title brought obligations as well as privileges. [+ for]
可惜对于王子来说,封号赋予他特权的同时也给他带来了义务。
The enclosed photograph is unfortunately not good enough to reproduce.