钻牛角尖

• waste time and effort trying to study an insignificant or insoluble problem; get (oneself) into a dead end; get into a blind alley
• get into a dead end

参考释义

钻牛角尖 [zuān niú jiǎo jiān]

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近反义词

【近义词】

• 抠字眼儿
• 咬文嚼字
• 死抠书本