没日没夜

沒日沒夜

méirì-méiyè

idiom

Meanings

HSK 3

考前那段时间，她没日没夜地复习。

Kǎo qián nà duàn shíjiān, tā méirì-méiyè de fùxí.

In the run-up to the exam, she studied round the clock.

HSK 5

他没日没夜地工作，终于完成了项目。

Tā méirì-méiyè de gōngzuò, zhōngyú wánchéng le xiàngmù.

He worked day and night and finally finished the project.

HSK 7-9

工地上没日没夜地赶工。

Gōngdì shàng méirì-méiyè de gǎngōng.

Work at the site went on day and night.

usage

Adverbial - nearly always followed by 地 + verb. Emphasizes sustained, exhausting effort over a stretch of time. Pairs well with 工作, 赶, 忙, 复习.

memory

没日没夜 = 'no day, no night' - the ABAB rhythm (没X没Y) stresses that both halves of the day blur together. Similar patterns: 没完没了, 没心没肺.

没 méi

日 rì

夜 yè