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English definition of “the penny drops”

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the penny drops

UK informal
If the penny drops, you suddenly understand something: She looked confused for a moment, then suddenly the penny dropped.
Translations of “the penny drops”
in Chinese (Traditional) 恍然大悟,豁然開朗…
in Chinese (Simplified) 恍然大悟,豁然开朗…
(Definition of the penny drops from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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