to be (like) child's play
01
朝飯前だ, まったく難しくない
to involve no difficulty
慣用句
くだけた
例
After years of training, the final test was child's play for her.
何年も訓練した後、最終試験は彼女にとって朝飯前だった。
02
activity by children that is guided more by imagination than by fixed rules



























