词语

悬崖勒马行至陡崖将马勒住，不继续前进。比喻面临危险及时醒悟回头。例此书生悬崖勒马可谓大智矣。——清纪昀《阅微草堂笔记》英rein in at the brink of the precipice ——wake up to and escape disaster at the last moment;