涤故更新

Explanation: Eliminate obsolete, replaced by new. 　　Usage: Joint type; as the predicate attribute; describe the removal of the old new ones 　　Source: Qing Pu "Liao Ma Jiefu": "Pi of the last death of this life, so be updated from polyester; then a hungry, will not be allowed to carry on." Thesaurus:  In addition to the old update, In addition to the old see the New Year in, Took the lead in reforming the, Old seek new homes, Self For it, change of dynasties Antonym Group:  An often learn it, Always keep it safe