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English definition of “night and day”

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night and day

( also day and night)
all the time: They've worked night and day to publicize their campaign.
Translations of “night and day”
in Chinese (Traditional) 夜以繼日,日夜不停…
in Chinese (Simplified) 夜以继日,日夜不停…
(Definition of night and day from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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