observe publicly and investigate privately—conduct a thorough investi gation; investigate openly and secretly
? 中央派來的官員經(jīng)過～，弄清了真相，決定平反。Through open and secret investigations the official sent by the central government clarified the truth and decided to reverse the unjust verdicts.
明察暗訪
observing publicly and investigating privately;conducting a thorough investigation
明察暗訪mínɡ chá àn fǎnɡ
公開調(diào)查，暗地里詢問了解。形容從各方面進(jìn)行調(diào)查了解。conduct a thorough investigation, observe publicly and investigate privately