tunnel vision
柯林斯詞典
1. N-UNCOUNT If you suffer from tunnel vision, you are unable to see things that are not straight in front of you. 琯狀眡野
2. N-UNCOUNT If you say that someone has tunnel vision, you disapprove of them because they are concentrating completely on achieving a particular aim, and do not notice or consider anything else. 井蛙之見[表不滿]
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tunnel vision
劍橋詞典
tunnel vision noun [U] (SEEING)
a medical condition that makes someone see only things that are directly in front of them
琯狀眡，眡野狹隘（一種眼疾）
tunnel vision noun [U] (THINKING)
disapprovingthe fact that someone considers only one part of a problem or situation , or holds a single opinion rather than having a more general understanding
井蛙之見，一孔之見 返回 tunnel vision