攻坚克难

攻堅克難
gōngjiānkènán
to tackle a thorny problem and overcome its challenges

CEDICT

Entry Composition

1 攻坚 gōngjiān
  1. to assault a fortified position
  2. (fig.) to concentrate one's efforts on a particularly difficult part of one's mission
2 克难 kènán
  1. to make do in difficult circumstances by being resourceful
  2. (of circumstances) difficult
  3. challenging
  4. (of a budget) tight
  5. (of a man-made thing) makeshift
  6. rough and ready