撼樹蚍蜉 hàn shù pí fú

DEFINITIONS

  1. lit. an ant trying to shake a tree
  2. to overrate oneself (idiom)

CHARACTERS

撼 hàn
HSK 6
move, shake; (Cant.) to fight
樹 shù tree; plant; set up, establish
蚍 pí mussels; various shellfish
蜉 fú mayfly; kind of large insect