卜昼卜夜

卜晝卜夜
bǔzhòubǔyè
day and night (to toil, to abandon oneself to pleasure etc)

CEDICT

占卜白天和夜晚饮酒的吉凶。语本《左传．庄公二十三年》：「饮桓公酒，乐。公曰：『以火继之。』辞曰：『臣卜其昼，未卜其夜，不敢。』」后用以形容宴乐无度，夜以继日。也作「卜夜卜昼」。

重編國語辭典

Entry Composition

1 卜 bǔ (bound form) to divine
2 昼 zhòu daytime
3 卜 bǔ (bound form) to divine
=4 夜 yè variant of 夜 yè
=4 夜 yè night

Related entries

不分昼夜 bùfēnzhòuyè
  1. day and night
  2. round-the-clock
你这样不分昼夜地工作，将会伤害自己的健康。

If you work day and night, you will lose your health.

Source: Tatoeba

日夜 rìyè
  1. day and night
  2. around the clock
她日夜想著這個。

She wants to do this day and night.

Source: Tatoeba

昼夜 zhòuyè
  1. day and night
  2. period of 24 hours
  3. continuously, without stop
这段时间昼夜温差很大。

There is a large temperature difference between day and night during this period of time.

Source: Tatoeba

没日没夜 méirìméiyè
  1. day and night
  2. regardless of the time of day or night
晨昏 chénhūn
  1. morning and twilight
  2. day and night
通宵达旦 tōngxiāodádàn
  1. overnight until daybreak (idiom); all night long
  2. day and night
全体销售人员通宵达旦地工作了一周。

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

Source: Tatoeba