假充

jiǎ chōng zhèng jīng

假充正经

pretend to be a respectable person

jiǎ chōng yīng xióng

假充英雄

pose as a hero

tā jiǎ chōng jì zhě hùn le jìn qu

他假充记者混了进去。

He posed as a newsman to get in.

mù tou cháng bèi tú shang yóu qī jiǎ chōng shí tou

木头常被涂上油漆假充石头。

Wood is often painted to imitate stone.