臨陣磨槍

Simplified: 临阵磨枪

línzhènmóqiāng ㄌㄧㄣˊ ㄓㄣˋ ㄇㄛˊ ㄑㄧㄤ

    • to sharpen one's spear only before going into battle (idiom)

      lit.

    • to make preparations only at the last moment

      fig.

Character by character

Sources