成语名称:投井下石:attack someone who has already fallen from power(kick somebody when he is down)英语: attack someone who has alre...
成语名称:落井下石:strike someone when he is down英语: strike someone when he is down落井下石造句:1、朋友有难,他不但伸出援手,反而落井下石,真是可耻。2、他都已经被害得这么惨...