lit. the rear waves of the Yangtze River drive on those before (idiom)
fig. the new is constantly replacing the old
each new generation excels the previous
(of things) to be constantly evolving
Definitions (粵典–words.hk)
語句
新一代勝過舊一代 each new generation excels the previous; literally: the rear waves of the Yangtze River drive on those before
長江後浪推前浪,一代新人勝舊人。
长江后浪推前浪,一代新人胜旧人。
coeng4 gong1 hau6 long6 teoi1 cin4 long6, jat1 doi6 san1 jan4 sing3 gau6 jan4 The younger generations excel the older, for the times they are a-changing.
Definitions (Wiktionary)
phrase, idiomatic
new things replace old things; the younger (new) generation replaces and surpasses the older (previous) generation (syn.) 长江后浪催前浪, 長江後浪催前浪