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back up是什么意思,back up的意思翻译、用法、同义词、例句

输入单词

back up英标

美:/'bæk ʌp/

常用解释

备份

类别

CET4,CET6,IELTS,TOEFL

常用词典

  • v. 支持,援助;(资料)备份;倒退;裱;堵车

  • 例句

  • I backed up until I felt the wall against my back.

    我后退了几步 直到感觉到后背贴上了墙

  • She invoked several eminent scholars to back up her argument.

    她援引了几位赫赫有名的学者来支持她的论点。

  • You can back up another two feet or so.

    你可以再退两英尺左右。

  • That sort of attitude really gets my back up!

    那种态度实在叫我恼火!

  • The writer doesn't back up his opinions with examples.

    作者不用实例印证他的看法。

  • Radio signals received from the galaxy's centre back up the black hole theory.

    从该星系中心接收到的无线电信号证实了黑洞理论。

  • 常用搭配

  • backup and recovery

    备份与恢复

  • backup and restore

    备份与还原

  • backup system

    备用系统;后备系统

  • backup roll

    支承辊;背辊;压辊

  • backup copy

    副本;备份件

  • 同义词

  • v.|support of/plunk for;支持,援助;(资料)备份;倒退;裱

  • 专业解析

    "back up" 是一个多功能的英语短语动词,其含义根据上下文而变化,主要包含以下几类核心意思:

    1. 支持或援助:

      • 含义: 为某人提供帮助、支持或鼓励;证实或支持某个说法、观点或决定。
      • 例句: "I'll back you up if you need help during the presentation." (如果你在演示过程中需要帮助,我会支持你。) "His research backs up the theory that climate change is accelerating." (他的研究支持了气候变化正在加速的理论。)
      • 权威参考: 牛津词典将其定义为 "to support somebody/something; to say that what somebody says, etc. is true"(支持某人/某事;证实某人所说的话等是真实的)。(来源:Oxford Learner's Dictionaries)
    2. (使)向后移动:

      • 含义: 使车辆向后行驶;人或动物向后退。
      • 例句: "He backed the car up carefully into the parking space." (他小心翼翼地把车倒进停车位。) "The dog growled, so I backed up slowly." (狗发出了低吼,所以我慢慢向后退。)
      • 权威参考: 剑桥词典将其定义为 "to move backwards a short distance"(向后移动一小段距离)或 "to drive a vehicle backwards"(倒车)。(来源:Cambridge Dictionary)
    3. 复制以作备份:

      • 含义: (在计算机领域)为文件、数据或整个系统制作副本,以防原始文件丢失或损坏。
      • 例句: "Remember to back up your important files regularly to an external hard drive." (记得定期将重要文件备份到外置硬盘上。) "The server crashed, but luckily we had backed everything up the night before." (服务器崩溃了,但幸运的是我们在前一天晚上备份了所有数据。)
      • 权威参考: 梅里亚姆-韦伯斯特词典将其定义为 "to make a copy of (a computer file or data) to protect against accidental loss or damage"(复制计算机文件或数据以防止意外丢失或损坏)。(来源:Merriam-Webster Dictionary)
    4. 积累或堵塞:

      • 含义: (指交通)因拥堵而无法顺畅流动;(指液体或物质)因堵塞而无法排出,导致积聚。
      • 例句: "Traffic is backed up for miles due to the accident on the highway." (由于高速公路上发生事故,交通堵塞长达数英里。) "The drain is backed up; we need to call a plumber." (排水管堵住了,我们需要叫水管工来。)
      • 权威参考: 柯林斯词典将其定义为 "If traffic backs up, it forms a long line of stationary or slow-moving cars, lorries etc, because something is blocking the road"(如果交通堵塞,它会形成一长排静止或缓慢移动的汽车、卡车等,因为有东西挡住了道路)。(来源:Collins Dictionary)
    5. (音乐)伴奏:

      • 含义: (在音乐领域)为歌手或主奏乐器提供伴奏。
      • 例句: "The singer was backed up by a talented group of musicians." (这位歌手由一群才华横溢的音乐家伴奏。)
      • 权威参考: 朗文当代英语词典将其定义为 "to play music that supports the main singer or instrument"(演奏音乐以支持主唱或主奏乐器)。(来源:Longman Dictionary of Contemporary English)

    网络扩展资料

    “Back up”是一个多义词组,具体含义需结合语境理解。以下是其主要用法及解释:

    1.支持/援助(动词短语)

    指为某人提供帮助或支持,强调在困难时给予后盾。
    例:She alwaysbacks me up during meetings.(她总在会议上支持我。)
    此用法常见于团队协作或人际互动场景。

    2.倒车(动词短语)

    描述车辆向后移动的动作。
    例:Hebacked up the car slowly to avoid the obstacle.(他慢慢倒车避开障碍物。)
    需注意区分及物(接宾语)与不及物用法。

    3.数据备份(动词/名词)

    在技术领域指复制文件以防丢失,名词形式为“backup”。
    例:Remember toback up your files regularly.(记得定期备份文件。)
    此含义在数字化时代尤为重要。

    4.堵塞(动词短语)

    描述液体或物体因堆积无法流动的状态。
    例:The drain isbacked up due to leaves.(下水道被树叶堵住了。)
    常见于描述管道、交通等场景。

    其他引申义

    使用注意

    建议结合具体句子进一步分析其含义。

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