bagatelle
/ˌbægəˈtel/noun
1
- mass noun a game in which small balls are hit and then allowed to roll down a sloping board on which there are holes, each numbered with the score achieved if a ball goes into it, with pins acting as obstructions弹球游戏。
2
- a thing regarded as too unimportant or easy to be worth much consideration（无足轻重的）小事; 小把戏：
dealing with these boats was a mere bagatelle for the world's oldest yacht club.
对世界上资历最老的帆船俱乐部来说, 应付这些船简直就是小菜一碟。
3
- a short, light piece of music, especially one for the piano（尤指钢琴演奏的）轻快小曲。
词源
mid 17th cent. (in sense 2)： from French， from Italian bagatella, perhaps from baga 'baggage' or from a diminutive of Latin baca 'berry'. Sense 1 dates from the early 19th cent.