tediously       
adverb uk/ˈtiː.di.əs.li/ us/ˈtiː.di.əs.li/
 单调乏味地,无趣地
in a boring way that continues for a long time
  tediously long meetings 冗长乏味的会议 
 Many people work tediously at a boring job for many years. 许多人在很多年里从事着同一份乏味无聊的工作。 
 See: tedious
 - More examples
 - While service was sometimes quick, more often than not it was tediously slow.
 - The drummers, tediously beating the rhythm of the march, broke into joyous flurries when they realized their Emperor was so close.
 - Samuel found me tediously childish as a travelling companion.
 - Other trustees have said that their intent is to cut back on the board's tediously long public meetings.