埋头苦干 mái tóu kǔ gàn

DEFINITIONS

  1. to bury oneself in work (idiom); to be engrossed in work
  2. to make an all-out effort
  3. up to the neck in work

CHARACTERS

埋 mái bury, secrete, conceal
头 tóu head; top; chief, first; boss
苦 kǔ bitter; hardship, suffering
干 gàn oppose, offend; invade; dried