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back up

  1. 支持
    • The policeman wouldn't have believed me if you hadn't backed me up.
      如果当时你不支持我, 警察是不会相信我的。
    • He backed up his arguments with facts.
      他以事实支持自己的论点。
  2. 堵塞
    • The accident backed up traffic.
      事故使交通堵塞。
  3. 往后退
    • You'll have to back up and turn around.
      你将不得不往后退并转身。
  4. 复制
    • Make sure you back up the disk before you turn the computer off.
      一定要先复制磁盘, 然后再关电脑。

网络词典

back up

英 Unknown 美 Unknown
Unknown 中文翻译：Unknown
同义词： Unknown

例句：

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