水清無魚

shui3 qing1 wu2 yu2

clear water, so few fish (idiom); You cannot expect everyone to be squeaky clean., Don't be too picky!

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水清無魚|水清无鱼 [shuǐ qīng wú yú] ► clear water, so few fish (idiom); You cannot expect everyone to be squeaky clean. ► Don't be too picky!