費工夫 fèi gōng fu

DEFINITIONS

  1. to spend a great deal of time and effort
  2. (of a task) demanding
  3. exacting

CHARACTERS

費 fèi expenses, expenditures, fee
工 gōng
HSK 1
labor, work; worker, laborer
夫 fu
HSK 2
man, male adult, husband; those