repair and utilize old or discarded things; repair old things and make use of waste materials
? 工人們～，為國家節(jié)省了一大筆錢。The workers repaired and utilized old things and save a large sum of money for the state.
修舊利廢
repair and utilize old(or discarded)things
修舊利廢xiū jiù lì fèi
把舊的修理好，變廢物為有用的東西。repair and utilize old or discarded things, repair old things and make use of waste materials