前赴後繼 qián fù hòu jì

DEFINITIONS

  1. to advance dauntlessly in wave upon wave (idiom)

CHARACTERS

前 qián
HSK 1
in front, forward; preceding
赴 fù
HSK 6
go to; attend, be present
後 hòu behind, rear, after; descendents
繼 jì continue, maintain, carry on