病從口入，禍從口出 [ㄅㄧㄥˋ ㄘㄨㄥˊ ㄎㄡˇ ㄖㄨˋ , ㄏㄨㄛˋ ㄘㄨㄥˊ ㄎㄡˇ ㄔㄨ; bing4 cong2 kou3 ru4 , huo4 cong2 kou3 chu1] Illness enters by the mouth, trouble comes out by the mouth (idiom). A loose tongue may cause a lot of trouble. ◄ ►
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