piece of cake

Từ điển Oxford Learners Wordfinder Dictionary

noun

any undertaking that is easy to do
- marketing this product will be no picnic
• Syn:
cinch, breeze, picnic, snap, duck soup,
child's play, pushover, walkover
• Derivationally related forms:
walk over (for: walkover), breeze (for: breeze), cinch (for: cinch)
• Hypernyms:
undertaking, project, task, labor
• Hyponyms:
doddle