1. 1〔やってやる〕
    • お母さんがあの子の宿題をしてやるそうだ
    • They say that his mother does his homework for him.
  1. 2〔うまくいく〕make a success ((of));〔うまくだます〕take ((a person in)),outwit ((a person))
    • してやったりとほくそえむ
    • 「gloat over [revel in] one's success