rì yè
day and night; round the clock
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他日夜思念家乡。
tā rì yè sīniàn jiāxiāng.
He misses his hometown day and night.
她日夜工作，终于取得了成功。
tā rì yè gōngzuò, zhōngyú qǔdéle chénggōng.
She worked day and night and finally achieved success.
这家公司日夜生产，以满足市场的需求。
zhè jiā gōngsī rì yè shēngchǎn, yǐ mǎnzú shìchǎng de xūqiú.
This company produces day and night to meet market demand.
昼夜 (zhòuyè)
day and night
时刻 (shíkè)
every moment
白天 (bái tiān)
daytime
黑夜 (hēi yè)
nighttime
The Chinese word 日夜 (rì yè) literally means "sun night". It is a compound word composed of two characters: 日 (rì), meaning "sun" or "day", and 夜 (yè), meaning "night". The word 日夜 is often used to refer to a period of time that spans both day and night, or to something that happens continuously or without interruption. For example, the phrase 日夜兼程 (rì yè jiān chéng) means "to travel day and night", and the phrase 日夜操劳 (rì yè cāo láo) means "to work day and night".The word 日夜 has been used in Chinese for centuries. It is found in many ancient texts, including the Analects of Confucius and the Book of Songs. The word 日夜 is also used in modern Chinese, and it is one of the most common words in the language.The etymology of the word 日夜 is relatively straightforward. The character 日 (rì) is a pictograph of the sun, and the character 夜 (yè) is a pictograph of the moon. The two characters together form a compound word that means "sun night". This word is often used to refer to a period of time that spans both day and night, or to something that happens continuously or without interruption.
