a piece of cake

• That ' s nothing . that ' s a piece of cake
  没什么，小菜一碟
• Speaking english is a piece of cake
  说英语是小菜一碟。
• I hope some day speaking english would just be a piece of cake for me
  我希望有一天说好英语只是小菜一碟。
• Uh , ok . this is a piece of cake , dad
  小菜一碟，老爸
• It is a piece of cake
  这是一片蛋糕这是小菜一碟。
• The next step is a piece of cake
  下一步是一块蛋糕
• We need not have worried about the math exam . it was a piece of cake
  我们本不必担心数学考试,实际上很容易。
• After raising ten children , everything else is a piece of cake
  经历了10个孩子的抚养之后，其他事都易如反掌。
• Amy : i have finished it in ten mimutes . it ' s a piece of cake
  艾米：我只用了十分钟就做完了，不过是小事一桩嘛！
• . . . this should be a piece of cake
  这根本不算什么