通宵达旦通宵達旦

tōng xiāo dá dàn

Meaning

overnight until daybreak (idiom); all night long; day and night

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Characters

通tōngto pass through, to open, to connect; to communicate; common辶甬宵xiāonight, evening, darkness宀肖达dáto reach, to arrive at; intelligent辶大旦dàndawn; morning; day日一

Examples

全体销售人员通宵达旦地工作了一周。

quán tǐ xiāo shòu rén yuán tōng xiāo dá dàn de gōng zuò le yī zhōu。

The entire sales staff has worked around the clock for a week.