单词盒子

back up

B 开头单词

基本解释

  • v. 支持，援助；（资料）备份；倒退；裱；堵车

同根派生

     

英汉例句

    用作不及物动词 (vi.)

  • Because congestion prevents ships heading back to pick up new cargoes, it has helped to push prices up further.
    由于拥堵使船只难以返回运载新的货物，起到了进一步推高价格的作用。
  • Some drivers will switch to the bridge to shorten theircommute, but as the traffic builds up there the motorway starts to look like abetter bet, so some switch back.
    一些司机为了缩短行程选择走桥，但当桥上变得拥堵时，高速路似乎是更好的选择，因此一些司机又折返回来走桥。
  • The fire won't burn because the flue is blocked up.
    因烟道堵塞火烧不起来。
  • Clogged pipes backed up drain water.
    阻塞的水管堵塞了沟水。

    • 用作及物动词 (vt.)

  • She has almost nobody to take up for her.
    她几乎没有人支持。
  • The people are at the back of the government.
    人民是支持政府的。

词组短语

    短语

  • back -up galvanometer 辅助检流计
  • center back ride up 后中起吊
  • weld back -up 焊缝背垫
  • Back -up tongs 内钳
  • backup and recovery 备份与恢复

英英字典

    柯林斯英英字典

  • If someone or something backs up a statement, they supply evidence to suggest that it is true.
  • If you back up a computer file, you make a copy of it that you can use if the original file is damaged or lost.
  • If an idea or intention is backed up by action, action is taken to support or confirm it.
  • If you back someone up, you show your support for them.
  • If you back someone up, you help them by confirming that what they are saying is true.
  • If you back up, the car or other vehicle that you are driving moves back a short distance.
  • If you back up, you move backward a short distance.
  • When a car backs up or when you back it up, the car is driven backward.
  • &rarrsee also backup

专业释义

    体育

  • (球员)给…补位，后退补位，跑到(本队球员)背后策应；接应：

    • 计算机科学技术

  • 作(数据文件的)备份，把…备份，制作(…的)后备软盘，备份复制，后备复制(数据)

    • 交通运输工程

  • 拉紧(帆索未系住的一端)：

    • 印刷、复印技术

  • 印(一印张的)反面

    • 动力与电气工程

  • 支持

    • 电子、通信与自动控制技术

  • 备用
  • 备用设备