通宵达旦 all night long
Explanation
形容夜间工作或学习到天亮。
Describes working or studying at night until morning.
Origin Story
在古代的科举考试中，很多考生为了能够金榜题名，常常会通宵达旦地苦读。在一个寒冷的冬夜，一位名叫李白的考生，为了赶上考试前的最后复习，他点亮了油灯，伏案苦读。窗外寒风呼啸，屋内却温暖如春，那是李白勤奋学习的火焰在燃烧。他翻阅着厚厚的书籍，认真地研读每一个字，每一个词，每一个句子。他忘记了时间，忘记了疲倦，忘记了寒冷，他心中只有考试，只有梦想。当第一缕阳光透过窗户照射进来时，李白才意识到，他已经通宵达旦地学习了一整夜。他揉了揉酸痛的眼睛，伸了个懒腰，脸上露出了欣慰的笑容。他知道，他已经为考试做好了充分的准备，他一定会金榜题名。
In ancient China's imperial examinations, many candidates would often study day and night to succeed. On a cold winter night, a candidate named Li Bai, in order to catch up on his last-minute review before the exam, lit an oil lamp and buried his head in his books. Outside, the cold wind howled, but inside, it was as warm as spring—the flame of Li Bai's diligent study was burning. He flipped through thick books, carefully studying every word, every phrase, every sentence. He forgot time, he forgot fatigue, he forgot the cold; in his heart was only the exam, only his dreams. When the first rays of sunlight shone through the window, Li Bai realized that he had been studying all night. He rubbed his sore eyes, stretched, and smiled with satisfaction. He knew that he had prepared well for the exam, and that he would surely succeed.
Usage
用于形容工作或学习持续时间很长，通常指整夜。
Used to describe work or study that lasts a long time, usually all night.
Examples
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为了完成项目，他们通宵达旦地工作。
wèile wánchéng xiàngmù, tāmen tōngxiāodádàn de gōngzuò
In order to complete the project, they worked all night.
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学生们通宵达旦地复习迎考。
xuéshengmen tōngxiāodádàn de fùxí yíngkǎo
Students stayed up all night reviewing for the exam.
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艺术家为了完成作品，常常通宵达旦地创作。
yìshùjiā wèile wánchéng zuòpǐn, chángcháng tōngxiāodádàn de chuàngzuò
Artists often work all night to create their work