qián fù hòu jì前赴后继to advance dauntlessly in wave upon wave (idiom)HSK 7+ · 词频 2.3含义to advance wave after wave; to keep pressing forward例句一代代科学家前赴后继探索未知。战士们前赴后继冲上阵地。志愿者前赴后继奔赴灾区救援。