can't see the forest for the trees
US /kænt si ðə ˈfɔrɪst fɔr ðə triːz/
UK /kænt si ðə ˈfɔrɪst fɔr ðə triːz/
1.
只见树木不见森林, 因小失大
to be unable to understand a situation clearly because you are too involved in too many small details or problems
:
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He's so focused on minor issues that he can't see the forest for the trees.
他过于关注小问题，以至于只见树木不见森林。
•
Sometimes you need to step back and look at the bigger picture, otherwise you'll can't see the forest for the trees.
有时你需要退后一步，看看大局，否则你就会只见树木不见森林。