[zuān niú jiǎo jiān, ㄗㄨㄢ ㄋㄧㄡˊ ㄐㄧㄠˇ ㄐㄧㄢ, 钻牛角尖 / 鑽牛角尖] lit. to hone a bull's horn (成语 saw); fig. to waste time on an insoluble or insignificant problem; to bash one's head against a brick wall; a wild goose chase; a blind alley; to split hairs #40,406[Add to Longdo]
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