故旧

四旧 sìjiù

the Four Olds (old ideas, old culture, old customs, old habits) — target of destruction during the Cultural Revolution

故伎重演 gùjìchóngyǎn #47,644

to perform an old trick again / to repeat the same old stratagem / up to one's old tricks

故纸堆 gùzhǐduī

pile of old papers / heap of musty old books / the stuffy world of dead texts, with a derogatory tinge

故态复萌 gùtàifùméng #48,544

to revert to old ways / old habits resurface / to fall back into one's bad habits

故技 gùjì #33,170

old trick / stale ploy / the same old routine

旧貌变新颜 jiùmàobiànxīnyán

old appearance gives way to a new look / everything has taken on a fresh face / (lit.) the old visage has changed to a new countenance

西出阳关无故人 xīchūYángguānwúgùrén

west of Yang Pass you will have no old friends / once past Yang Pass there are no companions from home / Wang Wei's farewell line for a friend going into the western frontier

总把新桃换旧符 zǒngbǎxīntáohuànjiùfú

people always replace the old peachwood charms with new ones / fig. every new year renews old things / a classical image for the Lunar New Year ritual of replacing door charms

旧病复发 jiùbìngfùfā

an old illness returns / a relapse / (figuratively) an old bad habit resurfaces

新旧 xīnjiù

new and old / (of items) condition, newness / (adjectival) covering both the new and the old