do one’s utmost to stem a raging tide or save a desperate situation;make vigorous efforts to turn the tide
❍ 在国家面临着危险的关键时刻，他领导着我们～，取得了伟大的胜利。When the state was in imminent danger,he led us in saving the critical situation and winning the great victory.
力挽狂澜
make tremendous efforts to turn the tide;strive (or do one’s utmost) to save a desperate situation (or stem a raging tide)
力挽狂澜lì wǎn kuánɡ lán
挽：挽回；狂澜：猛烈的大波浪。尽力挽回险恶的局面。make vigorous efforts to turn the tide, do one’s utmost to stem a raging tide or save a desperate situation