剑桥词典解释：
clutch/grasp at straws 抓住救命稻草
to be willing to try anything to improve a difficult or unsatisfactory situation, even if it has little chance of success:
用尽全力去改变困境或不利情况，即使成功几率渺茫：
She offered to take a pay cut to keep her job, but she was just clutching at straws.