空穴来风未必无因 (空穴來風未必無因) kōng xué lái fēng wèibì wú yīn

kōng xué lái fēng wèibì wú yīn phrase wind does not come from an empty cave without reason; there's no smoke without fire
Domain: Proverb 谚语 , Subdomain: , Concept:
Notes: (CC-CEDICT '空穴來風未必無因')