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汉语拼音：lín zhèn mó qiāng

到了要上阵杀敌的时候才去磨枪。比喻事到临头才作准备。

• 【解释】：临：到，快要；阵：阵地、战场；枪：指梭镖、长矛一类的武器。到了快要上阵打仗的时候才磨刀擦枪。比喻事到临头才匆忙准备。
• 【出自】：清·曹雪芹《红楼梦》第七十回：“‘临阵磨枪’，也不中用！有这会子着急，天天写写念念，有多少完不了的？”
• 【示例】：学习要靠平时努力，不要～，到考试前才用功。
• 【语法】：连动式；作谓语、定语；含贬义，比喻事到临头才匆忙准备

• HanLingsha: Booby! Therefore I let you to be calm and listen to me. Starting to prepare at the last moment is better than waiting for death!

  韩菱纱：呆子~所以才让你静下心来听我念，临阵磨枪，总比等死强！

• I've got to cram for a test tomorrow.

  我为明天的考试临阵磨枪。

• For the first Googlers, a work day is no longer like cramming for finals.

  对于第一批Google人，一个工作日不再像是为期末考试临阵磨枪那样紧张。

• Will soon for the mid-term examination, the old proverb: "that's fast also, light. "

  马上就要进行期中考试了，俗语说：“临阵磨枪，不快也光。”

• This format is both boring and exhausting. And students tend to forget what they've "crammed" as soon as they leave the exam room.

  这种考试形式既无聊又让人疲惫不堪，学生很容易一走出考场就忘记了临阵磨枪时死记硬背的内容。

• I spent the last 48 hours cramming for it.

  我在刚过去的48小时在临阵磨枪。

• Look, Cram Session Tonight. My Dad's Making Lasagna.

  听着今晚要临阵磨枪我爸爸会做意大利面条

• He is cramming for the chemistry exam tomorrow.

  他正临阵磨枪准备明天之化学考试呢。

• But we can no longer risk emergency improvisation of national defense.

  但我们不能再拿国防冒险，临阵磨枪。