一葉障目

yi1 ye4 zhang4 mu4

lit. eyes obscured by a single leaf (idiom), fig. not seing the wider picture, can't see the wood for the trees

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一葉障目|一叶障目 [yī yè zhàng mù] ► lit. eyes obscured by a single leaf (idiom) ► fig. not seing the wider picture ► can't see the wood for the trees