【日新月异】〖rì xn yuè yì〗[change rapidly; alter from day to day; bring about new changes; change for the better day by day, and month by month]

日行千里速超前，

新陈代谢竞能贤。

月值年该灭私制，

异军突起大同寰。

每天都在更新，每月都有变化。指发展或进步迅速，不断出现新事物、新气象。Every day all updating, monthly all have change. Refers development or progress quickly, constantly appear new things、new meteorological.同：一日千里、与日俱进。反：一成不变、故步自封。谜：初一、大年初一。