不顯山不露水 [ㄅㄨˋ ㄒㄧㄢˇ ㄕㄢ ㄅㄨˋ ㄌㄨˋ ㄕㄨㄟˇ; bu4 xian3 shan1 bu4 lu4 shui3] lit. to not show the mountain and to not reveal the water (idiom); fig. to hide the key facts ◄ ►
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