qián​pū​hòu​jì

relentless advancement

前仆后继 (前仆後繼) qián​pū​hòu​jì
relentless advancement idiom
one falls, the next follows; stepping into the breach to replace fallen comrades; advancing wave upon wave

Frequency

Movie subtitles
0.180 per million appears in 0% of films
Written text
0.569 per million

Sources

Definitions
CC-CEDICT