created sense approved 临阵磨枪/臨陣磨槍 · línzhènmóqiāng · last-minute preparation
临阵磨枪 / 臨陣磨槍
línzhènmóqiāng
last-minute preparation
To start preparing for a task or challenge only when it is about to begin; to procrastinate on preparation until the very last moment.
明天就要考试了,他现在才临阵磨枪,显然已经来不及了。
idiom