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◎懸崖勒馬xuányá-lèmǎ
[rein in at the brink of the precipice ——wake up to and escape disaster at the last moment] 行至陡崖，將馬勒住，不繼續(xù)前進(jìn)。比喻面臨危險(xiǎn)及時(shí)醒悟回頭
此書生懸崖勒馬，可謂大智矣?！?/span>清·紀(jì)昀《閱微草堂筆記》
(好工具)