back up
vi.
协防，补防；支持；堵塞；复制往后退；
英英释义
back up
n.
an accumulation caused by clogging or a stoppage
同义词：backup
someone who takes the place of another (as when things get dangerous or difficult)
同义词：stand-insubstitutereliefrelieverbackupbackup manfill-in
a subordinate musical part; provides background for more important parts
同义词：accompanimentmusical accompanimentbackupsupport
(computer science) a copy of a file or directory on a separate storage device
同义词：backupcomputer backup
the act of providing approval and support
同义词：backingbackupchampionshippatronage
v.
give moral or psychological support, aid, or courage to
同义词：support
move backwards from a certain position
同义词：back offback down
establish as valid or genuine
同义词：back
make a copy of (a computer file) especially for storage in another place as a security copy
become or cause to become obstructed
同义词：clogchoke offclog upcongestchokefoul
词组短语
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
backup file备份文件
backup software文件备份
backup device备份设备；备用设备
full backup全部备份
system backup系统备份；系统后备
backup storage n. 后备存储器
file backup文件备份；档案备份
双语例句
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。
The regime had been propped up by foreign aid.
该政权是靠外国援助维持著的。
He turned his back on his own family when they did need help.
他的家庭正需帮忙时，他不予援助。
The car backed up and hit the tree.
汽车倒退撞在树上。
The steps are easy to trace back.
易于将这些步骤倒退回去。
You can back up and restore full-text catalogs.
可以备份和还原全文目录。
This option will back up files on the volume.
该选项将备份卷中的文件。
权威例句
System and parallel streaming and data stripping to back-up a networkAn expert system for the back-up protection of a transmission network
A back-up glycosylase in Nth1 knock-out mice is a functional Nei (endonuclease VIII) homologue.
A Novel Back Up Wide Area Protection Technique for Power Transmission Grids Using Phasor Measurement Unit
Direct methanol fuel-cell combined with a small back-up battery
DNA polymerase lambda mediates a back-up base excision repair activity in extracts of mouse embryonic fibroblasts
Back Up the Organization: How Employees and Information Systems Remember Organizational Practice
Effects of exit back-up on delamination in drilling composite materials using a saw drill and a core drill
Back up the organisation: how employees and information systems re-member organizational practice
Back up your Stance: Recognizing Arguments in Online Discussions
1. Furthermore, one sensory ability may back up another.
此外，一种感知能力可能会为另一种感知能力提供支持。
youdao
2. 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。
《牛津词典》
3. 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。
《柯林斯英汉双解大词典》
4. He's now back up on the slopes again, skiing competitively in events for the disabled.
他如今又回到了滑坡上，在残疾人赛事上赛滑雪。
《柯林斯英汉双解大词典》
5. You can back up another two feet or so.
你可以再退两英尺左右。
《牛津词典》
6. That sort of attitude really gets my back up!
那种态度实在叫我恼火！
《牛津词典》
7. There is no emergency back-up immediately available.
没有立即就能获得的后备。
《柯林斯英汉双解大词典》
8. The writer doesn't back up his opinions with examples.
作者不用实例印证他的看法。
《牛津词典》
9. Other actions can be taken to back up the policy.
可以采取其他行动来支持该政策。
youdao
10. First let me back up a bit and talk about vision correction before the printing press.
让我先回顾下在印刷术之前的视力矫正是什么样的。
youdao
11. In this article, you need to back up the general statement with specific examples.
在文章中，你需要用具体的例子支持总的观点。
youdao
12. If we go back up to the kinds of data objects we started with, floats, ints, strings, they actually behave the same way.
如果我们回想一下我们一开始讲过的数据对象的种类，浮点数，整数，字符串，它们实际上有相同的行为方式。
youdao
13. But as soon as the fever goes down, it's soon back up again.
但是，体温降下来不久后，它很快再度回升了。
youdao
14. Now, look back up at the section here, where you wrote about Dewey's view of individuality.
现在，回头看看这一节，你在这里写了杜威的个性观。
youdao
15. Let's back up again and talk about the time period from the 1860s to the 1880s and talk more about what happened in women's art classes.
让我们再次倒退，回到19世纪60到80年代，来多谈谈女性艺术课上发生了什么。
youdao
16. As soon as the driver puts the car in gear and touches the gas pedal, the engine starts back up.
司机一挂上挡，踩下油门踏板，发动机就重新启动了。
youdao
17. As a result, they have lost the parachute they once had in times of financial setback—a back-up earner (usually Mom) who could go into the workforce if the primary earner got laid off or fell sick.
因此，它们已经失去了在经济萧条时期曾经持有的“保护伞”——一个后备挣钱者（通常是母亲），她可以在主要挣钱者失业或者病倒的时候出去工作。
youdao
18. In this article, you need to back up general statements with specific examples.
在这篇文章中，你需要用具体的例子来支撑笼统的语句。
youdao
19. I managed to pull everything back up.
我设法挽回这一切。
youdao
20. I hit the ground and bounced back up.
我撞到地上，弹了回来。
youdao
21. Every few steps he stopped to pull his trousers back up because he didn't have a belt.
他每走几步就停下来提提裤子，因为他没有皮带。
youdao
22. This is just sort of bringing us back up to speed and adding a few more details in.
这只是让我们跟上进度，增加一些细节。
youdao
23. He used all his strength to raise the tree back up again, and look after it until it completely recovered.
他用尽所有的力气把树扶起来，并照顾它，直到它完全康复。
youdao
24. The old idea will surface back up in another piece of work or another idea at some point in your life.
在你的生活中的某个时刻，旧点子会以另一种形式出现，或者另一个点子会出现。
youdao
25. The weight of the ball causes the dragon's head to move down and the dragon's tail pulls the water bowl back up.
球的重量使龙头向下移动，龙尾将水碗拉起来。
youdao
26. "It might take the monarchs as many as four to five generations to complete the journey all the way back up to Canada," says Sarina Jepsen, who directs the endangered species program for the Xerces Society.
“完成返回加拿大的整段旅程，帝王蝶可能会经历四到五代。”薛西斯戈灰蝶协会濒危物种项目的负责人萨琳娜·杰普森说道。
youdao
27. Clogged pipes caused drain water to back up into the room.
水管堵塞，排出去的水倒灌入室。
《新英汉大辞典》
28. Don't back up the moment you run up against a little difficulty.
不要遇到一点困难就打退堂鼓。
《新英汉大辞典》
29. If you can't go up the hill forwards, you'll have to back up.
如果你不能往前爬上山，那你就得向后退。
youdao
30. Actually, let me back up and do this in video.
实际上，让我们倒退下然后在录像里做这个。
youdao
back up
