“夜以继日”的释义为：白天未干完的事，晚上接着干，形容人勤奋劳苦。原意出自西周初年，杰出的政治家周公旦先是帮助他哥哥周武王打下天下，建立了西周于朝。后来，他哥哥死了，他的只有１３岁的侄儿周成王继承了皇位。周公旦为辅佐侄儿治理好国家，积极寻求治国之道，白天 “Day and night,” the interpretation is: not done during the day, then dry at night, described as hard-working people. Originally from the early Western Zhou Dynasty, Zhou Wendan, an outstanding statesman, first helped his brother Zhouwu Wang to lay down the world and established the Western Zhou Dynasty. Later, his brother died, his only 13-year-old nephew, King Zhou, inherited the throne. Zhou Gongdan adjuvant nephew good governance of the country, and actively seek the road to rule the country during the day