单词：laboriously 

副词

• 
  [1.r.laboriously] (同义词:[laboriously]  )
• 
  注释列句：in a laborious manner; "their lives were spent in committee making decisions for others to execute on the basis of data laboriously gathered for them"
• 属于名词 -> [laborious( adj. (指工作)艰苦的, 费力的, (指人)勤劳的 )]