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Open the tool →窗外有耳 (chuāng wài yǒu ěr) is a Chinese idiom (chengyu) meaning “Walls have ears”.
窗外有耳 is pronounced chuāng wài yǒu ěr in Mandarin Chinese.
Literally, 窗外有耳 means “Outside the window there are ears”. It is used to mean “Walls have ears”.
指秘密言谈可能泄密