yè夜nightyǐ以withjì继continuerì日day
Day and night; around the clock.
Literal meaning
night (夜) — with (以) — continue (继) — day (日)
Origin
A classical four-character phrase describing continuous effort without rest.
Examples
wèi为le了wán完chéng成zhè这ge个xiàng项mù目，tā他men们yè夜yǐ以jì继rì日de地gōng工zuò作。
To complete this project, they worked day and night.
yī医shēng生men们yè夜yǐ以jì继rì日de地qiǎng抢jiù救shāng伤yuán员。
The doctors worked around the clock to rescue the injured.
Usage & nuances
Implies diligence and hard work, often under pressure.
Learn idioms by speaking them
Idioms are most useful when they land in a real conversation. Practice them out loud in Kango — get instant feedback on tone and timing.
Download Kango on iOS