前仆后继

Traditional (Taiwan): 前仆後繼

qiánpūhòujì ㄑㄧㄢˊ ㄆㄨ ㄏㄡˋ ㄐㄧˋ

    • one falls, the next follows (idiom) stepping into the breach to replace fallen comrades
    • advancing wave upon wave

Character by character

Sources