钻牛角尖

zuānniújiǎojiān

take unnecessary pains to study an insignificant or insoluble problem; split hairs, get into a dead end (or a blind alley)

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zuan1 niu2 jiao3 jian1

lit. to penetrate into a bull's horn (idiom); 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

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钻牛角尖

zuān niú jiǎo jiān

（费力研究不值得的问题） take unnecessary pains to study an insignificant (insoluble) problem; split hairs

（行不通） get (oneself) into a dead end; get into a blind alley

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鑽牛角尖|钻牛角尖 [zuān niú jiǎo jiān] ► lit. to penetrate into a bull's horn (idiom); 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