副詞 unfortunately:

1. by bad luck
   同義詞：unluckily, regrettably, alas

1. Unfortunately the restaurant he recommended fell far short of our expectations.
   遺憾的是他推薦的餐廳與我們心目中的相去甚遠。
2. I like cats but unfortunately I'm allergic to them.
   我很喜歡貓，但可惜我對貓過敏。
3. Unfortunately, I missed the last train.
   我不幸錯過了末班火車。
4. Unfortunately he won't be here tomorrow evening.
   可惜的是他明晚不在這兒。
5. Unfortunately, I hurt my knee when I fell down on the ice.
   真不幸，我在冰上摔倒時摔傷了膝蓋。