wanly       
adverb  literary uk/ˈwɒn.li/ us/ˈwɑːn.li/
 恹恹地,无力地
in a way that shows no energy or enthusiasm
  She smiled wanly. 她淡淡地笑了笑。 
 "It's not a good place to be," he says, wanly. “这不是一个好地方”,他有气无声地说道。 
 See: wan
 - More examples
 - Layla and Claire looked on wanly, speechless with exhaustion.
 - Anna smiled wanly, wishing she did not feel such pain.
 - The sun was peering wanly through her kitchen window.