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English definition of “scratch your head”

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scratch your head

to think hard about something: A lot of people must be scratching their heads about which way to vote.
Translations of “scratch your head”
in Chinese (Traditional) 埋頭苦思…
in Chinese (Simplified) 冥思苦想…
(Definition of scratch your head from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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