前赴后继

to advance dauntlessly in wave upon wave (idiom)

front / forward / ahead / first / top (followed by a number) / future / ago / before / BC (e.g. 前293年) / former / formerly

to go / to visit (e.g. another country) / to attend (a banquet etc)

empress / queen / (archaic) monarch / ruler

back / behind / rear / afterwards / after / later / post-

to continue / to follow after / to go on with / to succeed / to inherit / then / afterwards