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English definition of “a leap in the dark”

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a leap in the dark

something you do without being certain what will happen as a result: I had very little information about the company, so writing to them was a leap in the dark.
Translations of “a leap in the dark”
in Chinese (Traditional) 輕舉妄動,莽撞舉動…
in Chinese (Simplified) 轻举妄动,莽撞举动…
(Definition of a leap in the dark from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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