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English definition of “a hair's breadth”

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a hair's breadth

a very small distance or amount: His finger was within a hair's breadth of touching the alarm. She came within a hair's breadth of losing her life (= she nearly died).
Translations of “a hair's breadth”
in Chinese (Traditional) 極短的距離,毫釐之差, 細微的量…
in Chinese (Simplified) 极短的距离,毫厘之差, 细微的量…
(Definition of a hair's breadth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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