ㄇㄧㄥˊmíngㄔㄚˊcháˋànㄈㄤˇfǎng

  1. 公開調查暗中了解兒女英雄傳·》:丈夫品行聲名那裡賊去關門明察暗訪。」明查暗訪」。

open enquiries and secret search (idiom)​; to investigate openly and in secret, taking information from all sides