英语词汇back up怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

back up

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1 PHRASAL VERB 支持，证实（某种说法） If someone or something backs up a statement, they supply evidence to suggest that it is true. 支持，证实（某种说法） [Also VERB n PREPOSITION]

Radio signals received from the galaxy's centre back up the black hole theory. [VERB PREP. noun]

从该星系中心收到的无线电信号证实了黑洞理论。
Her views are backed up by a 1989 Home Office report on crime. [VERB PREP. noun (not pronoun)]

1989年内政部的一份犯罪报告印证了她的观点。

SYN substantiate, support, prove, confirm

2 PHRASAL VERB 备份（文件） If you back up a computer file, you make a copy of it which you can use if the original file is damaged or lost. 备份（文件） [computing]

Make a point of backing up your files at regular intervals. [VERB PREP. noun]

一定要定期备份文件。
I get so annoyed when I lose work because I've forgotten to back it up. [VERB noun PREP.]

当我因为忘了备份把完成的工作弄丢时，真是懊恼极了。

3 PHRASAL VERB 将…付诸实施 If an idea or intention is backed up by action, action is taken to support or confirm it. 将…付诸实施 [Also VERB n PREPOSITION]

The Secretary General says the declaration must now be backed up by concrete and effective actions. [be VERB-ed PREP.]

秘书长说现在必须将宣言付诸具体有效的行动。
It is time the Government backed up its advert campaigns with tougher measures. [VERB PREP. noun]

是政府采取更严厉的措施来兑现其宣传承诺的时候了。

4 PHRASAL VERB 支持（某人） If you back someone up, you show your support for them. 支持（某人） [Also VERB PREPOSITION n]

His employers, Norfolk social services, backed him up. [VERB noun PREP.]

他的雇主—诺福克社会服务中心给予了他支持。

5 PHRASAL VERB 证实（某人）的说法 If you back someone up, you help them by confirming that what they are saying is true. 证实（某人）的说法 [Also VERB PREPOSITION n]

The girl denied being there, and the man backed her up. [VERB noun PREP.]

女孩否认在场，那名男子证实了她的话。

SYN support, second, aid, assist

6 PHRASAL VERB 倒车 If you back up, the car or other vehicle that you are driving moves back a short distance. 倒车

Back up, Hans. [VERB PREP.]

倒车，汉斯。
He backed up a few feet and rolled the window down. [VERB PREP.]

他往后倒了几英尺，然后摇下车窗。
A police van drove through the protesters and backed up to the front door of the house. [VERB PREP. + to]

一辆警车穿过抗议的人群，并倒至房子的前门。

7 PHRASAL VERB （车辆）堵塞，排成长龙 If vehicles back up, they form a line of traffic which has to wait before it can move on. （车辆）堵塞，排成长龙

Traffic into London on the M11 was backed up for several miles. [be VERB-ed PREP.]

进入伦敦的车辆在11号高速公路上堵了好几英里。

8 PHRASAL VERB 倒行；退着走；后退 If you back up, you move backwards a short distance. 倒行；退着走；后退

I backed up carefully until I felt the wall against my back. [VERB PREP.]

我小心翼翼地后退，直到感觉后背碰到了墙壁。
She backed up a few steps. [V P amount]

她后退了几步。

9 See also: backup

Trends of back up

View usage for:All yearsLast 10 yearsLast 50 yearsLast 100 yearsLast 300 years

单词	back up
释义	back up  1 PHRASAL VERB 支持，证实（某种说法） If someone or something backs up a statement, they supply evidence to suggest that it is true. 支持，证实（某种说法） [Also VERB n PREPOSITION] Radio signals received from the galaxy's centre back up the black hole theory. [VERB PREP. noun] 从该星系中心收到的无线电信号证实了黑洞理论。 Her views are backed up by a 1989 Home Office report on crime. [VERB PREP. noun (not pronoun)] 1989年内政部的一份犯罪报告印证了她的观点。 SYN substantiate, support, prove, confirm 2 PHRASAL VERB 备份（文件） If you back up a computer file, you make a copy of it which you can use if the original file is damaged or lost. 备份（文件） [computing] Make a point of backing up your files at regular intervals. [VERB PREP. noun] 一定要定期备份文件。 I get so annoyed when I lose work because I've forgotten to back it up. [VERB noun PREP.] 当我因为忘了备份把完成的工作弄丢时，真是懊恼极了。 3 PHRASAL VERB 将…付诸实施 If an idea or intention is backed up by action, action is taken to support or confirm it. 将…付诸实施 [Also VERB n PREPOSITION] The Secretary General says the declaration must now be backed up by concrete and effective actions. [be VERB-ed PREP.] 秘书长说现在必须将宣言付诸具体有效的行动。 It is time the Government backed up its advert campaigns with tougher measures. [VERB PREP. noun] 是政府采取更严厉的措施来兑现其宣传承诺的时候了。 4 PHRASAL VERB 支持（某人） If you back someone up, you show your support for them. 支持（某人） [Also VERB PREPOSITION n] His employers, Norfolk social services, backed him up. [VERB noun PREP.] 他的雇主—诺福克社会服务中心给予了他支持。 5 PHRASAL VERB 证实（某人）的说法 If you back someone up, you help them by confirming that what they are saying is true. 证实（某人）的说法 [Also VERB PREPOSITION n] The girl denied being there, and the man backed her up. [VERB noun PREP.] 女孩否认在场，那名男子证实了她的话。 SYN support, second, aid, assist 6 PHRASAL VERB 倒车 If you back up, the car or other vehicle that you are driving moves back a short distance. 倒车 Back up, Hans. [VERB PREP.] 倒车，汉斯。 He backed up a few feet and rolled the window down. [VERB PREP.] 他往后倒了几英尺，然后摇下车窗。 A police van drove through the protesters and backed up to the front door of the house. [VERB PREP. + to] 一辆警车穿过抗议的人群，并倒至房子的前门。 7 PHRASAL VERB （车辆）堵塞，排成长龙 If vehicles back up, they form a line of traffic which has to wait before it can move on. （车辆）堵塞，排成长龙 Traffic into London on the M11 was backed up for several miles. [be VERB-ed PREP.] 进入伦敦的车辆在11号高速公路上堵了好几英里。 8 PHRASAL VERB 倒行；退着走；后退 If you back up, you move backwards a short distance. 倒行；退着走；后退 I backed up carefully until I felt the wall against my back. [VERB PREP.] 我小心翼翼地后退，直到感觉后背碰到了墙壁。 She backed up a few steps. [V P amount] 她后退了几步。 9 See also: backup Trends of back up View usage for:All yearsLast 10 yearsLast 50 yearsLast 100 yearsLast 300 years
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