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夙夜匪懈
sùyèfěixiè
1. to work from morning to night (idiom)

Character Breakdown

夙
sù
dawn, early in the morning; previous; long-held
6 丶
夜
yè
night, dark; under cover of night
HSK 5 8 丶
匪
fěi
bandits, robbers, gangsters
10 丶
懈
xiè
idle, relaxed; negligent, remiss
16 丶

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