力挽狂瀾（力挽狂瀾）　

◎ 力挽狂瀾 lìwǎn-kuánglán

[to make herculean efforts to save a critical situation; make vigorous efforts to turn the tide; do one‘s utmost to save a desperate situation] 比喻控制猛烈的潮流,挽救危險的局勢

中流砥柱,力挽狂瀾,具大才,立大業(yè)。——《秋瑾集》