sharpen one’s spear just before going into battle—start to prepare at the last moment
臨陣磨槍
sharpen one’s spear only before going into battle;start to prepare at the last moment;take action in great haste
臨陣磨槍lín zhèn mó qiānɡ
槍：古代指梭鏢之類的兵器。到了上戰(zhàn)場打仗時才去磨槍。比喻事到臨頭，才做準備。start to prepare only at the last moment, sharpen one’s spear just before a battle