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English definition of “heads or tails?”

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heads or tails?

asked before you throw a coin into the air and want someone else to guess which side it will land on
Translations of “heads or tails?”
in Chinese (Traditional) (擲硬幣時)要正面還是反面?…
in Chinese (Simplified) (掷硬币时)要正面还是反面?…
(Definition of heads or tails? from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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