HSK 7–9 · Practice

日新月异

rìxīn-yuèyì

to change rapidly; to be renewed with each passing day

科技的发展日新月异,让人跟不上。

Kējì de fāzhǎn rìxīn-yuèyì, ràng rén gēn bú shàng。

Technology develops so rapidly that people can't keep up.