前仆后继 qián pū hòu jì

DEFINITIONS

  1. one falls, the next follows (idiom); stepping into the breach to replace fallen comrades
  2. advancing wave upon wave

CHARACTERS

前 qián
HSK 1
in front, forward; preceding
仆 pū fall forward; lie prostrate, prone; servant
后 hòu
HSK 1
queen, empress, sovereign; (simp. for 後) behind, rear, after
继 jì
HSK 4
continue, maintain, carry on