bagatelle  
noun uk/ˌbæɡ.əˈtel/ us/ˌbæɡ.əˈtel/
  (SMALL AMOUNT)      
  [ C usually singular ] literary小玩意儿,小事;(尤指款项)小数目 
something, especially an amount of money, that is small and not important
  A thousand pounds is a mere bagatelle to him. 1000英镑对他来说根本不算什么。 
   (GAME)     
 [ U ]巴格代拉桌球戏,九穴桌球戏 
a game played on a board with holes, in which small balls are hit towards the holes