mournfully       
adverb uk/ˈmɔːn.fəl.i/ us/ˈmɔːrn.fəl.i/
 忧伤地;悲痛地;凄楚地
in a very sad way
  He gazed mournfully out the window. 他悲伤地注视着窗外。 
 The church's funeral bell tolled mournfully over the neighbourhood. 教堂的丧钟在街区凄楚地响着。 
 See: mournful
 - More examples
- He looked at her mournfully with a pair of big, brown eyes, like he was almost ready to cry.
- He shook his head and stared mournfully out on to the lovely morning.
- "It's not been much fun so far," she said mournfully.