"She supported him during the illness"
"Her children always backed her up"
"The bully had to back down"
"Can you back up your claims?"
"You'd better back up these files!"
"The leaves clog our drains in the Fall"
"The water pipe is backed up"
1.支持，证实（某种说法）
If someone or somethingbacks up a statement, they supply evidence to suggest that it is true.
e.g. Radio signals received from the galaxy's centrebackup the black hole theory...
从该星系中心收到的无线电信号证实了黑洞理论。
e.g. Her views are backedup by a 1989 Home Office report on crime.
1989年内政部的一份犯罪报告印证了她的观点。
2.备份（文件）
If youback up a computer file, you make a copy of it which you can use if the original file is damaged or lost.
back up
e.g. Make a point of backingup your files at regular intervals...
一定要定期备份文件。
e.g. I get so annoyed when I lose work because I've forgotten toback itup.
当我因为忘了备份把完成的工作弄丢时，真是懊恼极了。
3.将…付诸实施
If an idea or intentionis backed up by action, action is taken to support or confirm it.
e.g. The Secretary General says the declaration must now be backedup by concrete and effective actions...
秘书长说现在必须将宣言付诸具体有效的行动。
e.g. It is time the Government backedup its advert campaigns with tougher measures.
是政府采取更严厉的措施来兑现其宣传承诺的时候了。
4.支持（某人）
If youback someoneup, you show your support for them.
e.g. His employers, Norfolk social services, backed himup.
他的雇主——诺福克社会服务中心给予了他支持。
5.证实（某人）的说法
If youback someoneup, you help them by confirming that what they are saying is true.
e.g. The girl denied being there, and the man backed herup.
女孩否认在场，那名男子证实了她的话。
6.倒车
If youback up, the car or other vehicle that you are driving moves back a short distance.
e.g. Backup, Hans...
倒车，汉斯。
e.g. He backedup a few feet and rolled the window down...
他往后倒了几英尺，然后摇下车窗。
7.（车辆）堵塞，排成长龙
If vehiclesback up, they form a line of traffic which has to wait before it can move on.
e.g. Traffic into London on the M11 was backedup for several miles.
进入伦敦的车辆在11号高速公路上堵了好几英里。
8.倒行；退着走；后退
If youback up, you move backwards a short distance.
e.g. I backedup carefully until I felt the wall against myback...
我小心翼翼地后退，直到感觉后背碰到了墙壁。
e.g. She backedup a few steps.
她后退了几步。
9. see also: backup
1. back up什么意思
1. 备份：3 夏天的风 (Winds Of Summer) 词:卫斯理 曲:卫斯理04 新闻主播 (News Anchor) 词:卫斯理 曲:卫斯理06 王老五 (Single Man) 词:卫斯理 曲:卫斯理07 大哥大 (Cell Phone) 词:卫斯理 曲:卫斯理08 备份 (BackUp) 词:卫斯理/是元
2. 支持：说起事务所关联的话题,首先,我想就日本方面的支持(backup)来说一下. 有一个传闻,以前(好像是80年代前半的时候),歌手赵容弼(Cho Yong-pil)意图进出日本. 很偶然地,在日本的某个私人聚会上,他在某日本著名歌手前面发表了演唱(只是宴会上的一个曲子).
3. 支援：ECU亦支援一组支援(backup)机构, 当gear position sensor 出现短路或开路(open circut)及sensor通往ECU的线路断线情形时ECU则会自动将MAP 读取锁定在只读取第6 档位置的MAP!
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。
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。
Radio signals received from the galaxy's centre back up the black hole theory...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.1989年内政部的一份犯罪报告印证了她的观点。
Make a point of backing up your files at regular intervals...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.当我因为忘了备份把完成的工作弄丢时，真是懊恼极了。
The Secretary General says the declaration must now be backed up by concrete and effective actions...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.是政府采取更严厉的措施来兑现其宣传承诺的时候了。
His employers, Norfolk social services, backed him up.他的雇主——诺福克社会服务中心给予了他支持。
The girl denied being there, and the man backed her up.女孩否认在场，那名男子证实了她的话。
back up, Hans...倒车，汉斯。
He backed up a few feet and rolled the window down...他往后倒了几英尺，然后摇下车窗。
Traffic into London on the M11 was backed up for several miles.进入伦敦的车辆在11号高速公路上堵了好几英里。
I backed up carefully until I felt the wall against my back...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.她后退了几步。
Clogged pipes caused drain water to back up into the room.水管堵塞,排出去的水倒灌入室.
Note that we back up over ignored characters too.注意:我们还要回溯所忽略的字符.
Myth # 4 : What goes down must come back up; or Buy low, sell high.谬论 # 4: 跌下去必定涨回来; 或者买入低价的, 卖出高价的.
The road is giving out all over! I think I can crawl back up.路面整个都松动了, 我想我能慢慢爬上去.
It's common to back up through a network to a dedicated backup server.经过一个网络向后倒车是通常的对一个热衷的预备服务器.
His offhand manner put my back up.他那随随便便的样子我看著很生气.
I wonder what has caused so many vehicles to back up here.我不知道为什么会有这么多车辆阻塞在这里.
Magnetic tape: A sequential storage device that is widely used for back up storage.磁带: 广泛的用作后备贮存的顺序贮存装置.
