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English definition of “grin/smile from ear to ear”

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grin/smile from ear to ear

to look extremely happy: "We've had a fantastic response!" he said, grinning from ear to ear.
Translations of “grin/smile from ear to ear”
in Chinese (Traditional) 非常開心,笑得合不攏嘴…
in Chinese (Simplified) 非常开心,笑得合不拢嘴…
(Definition of grin/smile from ear to ear from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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