yí gè / wèi jīng zhèng shí / de / shuō fǎ / bèi / fǎn fù / chuán bō / jiǔ ér jiǔ zhī / jiù huì / jī fēi chéng shì

一个未经证实的说法被反复传播，久而久之就会积非成是。

When an unverified claim is repeated again and again, people may eventually come to accept it as true.