back up 基本解釋
17. And at just that moment a little jenny wren, who had hidden in the feathers on his back, flew up----and won the competition.
就在這時，一只藏在他背上羽毛中的小鷦鷯（一種很小的鳥，10厘米長），鉆了出來，往高空一飛，贏得了冠軍。
18. You should set up separate Administrative, Clerical, Back office, and Support functions.
您應(yīng)該建立獨立的行政、文書、后勤和支持部門。
19. It is imperative that you look at all eventualities and have at least one back up plan.
最重要是，你看看所有不測事件，并有至少一個后備計劃。
20. And bending back her head, look'd up
她仰起了頭，抬起了眼睛
back up 詞典解釋
1.
1. 支持，證實（某種說法）
If someone or something backs up a statement, they supply evidence to suggest that it is true.
e.g. Radio signals received from the galaxy's centre back up the black hole theory...
從該星系中心收到的無線電信號證實了黑洞理論。
e.g. Her views are backed up by a 1989 Home Office report on crime.
1989年內(nèi)政部的一份犯罪報告印證了她的觀點。
2. 備份（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.
e.g. Make a point of backing up your files at regular intervals...
一定要定期備份文件。
e.g. I get so annoyed when I lose work because I've forgotten to back it up.
當(dāng)我因為忘了備份把完成的工作弄丟時，真是懊惱極了。
3. 將…付諸實施
If an idea or intention is backed up by action, action is taken to support or confirm it.
e.g. The Secretary General says the declaration must now be backed up by concrete and effective actions...
秘書長說現(xiàn)在必須將宣言付諸具體有效的行動。
e.g. It is time the Government backed up its advert campaigns with tougher measures.
是政府采取更嚴(yán)厲的措施來兌現(xiàn)其宣傳承諾的時候了。
4. 支持（某人）
If you back someone up, you show your support for them.
e.g. His employers, Norfolk social services, backed him up.
他的雇主??諾�？松鐣⻊�(wù)中心給予了他支持。
5. 證實（某人）的說法
If you back someone up, you help them by confirming that what they are saying is true.
e.g. The girl denied being there, and the man backed her up.
女孩否認(rèn)在場，那名男子證實了她的話。
6. 倒車
If you back up, the car or other vehicle that you are driving moves back a short distance.
e.g. Back up, Hans...
倒車，漢斯。
e.g. He backed up a few feet and rolled the window down...
他往后倒了幾英尺，然后搖下車窗。
7. back up
7. （車輛）堵塞，排成長龍
If vehicles back 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 backed up for several miles.
進(jìn)入倫敦的車輛在11號高速公路上堵了好幾英里。
8. 倒行；退著走；后退
If you back up, you move backwards a short distance.
e.g. I backed up carefully until I felt the wall against my back...
我小心翼翼地后退，直到感覺后背碰到了墻壁。
e.g. She backed up a few steps.
她后退了幾步。
9. see also: backup
back up 單語例句
1. I had intended to go back home by car sharing, but eventually I gave up.
2. Visitors can ride a cable car most of the way up the mountainside and rocket back to its base by sled.
3. He hangs up, promising to discuss it with the boss and call back.
4. She wakes up around noon and finds plenty of missed calls on her cell phone from people she needs to call back.
5. The Wallabies victory was soured though by a shoulder injury sustained by utility back Scott Staniforth and may have to call up a replacement.
6. I woke up feeling like I had licked the back of a camel that had spent a week rolling in a salt pit.
7. back up的意思
7. On Saturday protesters swarmed back into Pearl square putting riot police to flight and confidently setting up camp for a protracted stay.
8. Yushchenko's allies sought to persuade thousands of activists to dismantle a tent camp sent up in central Kiev last month to back their candidate.
9. Tourism chiefs in Beijing are gearing up for their most important promotion campaigns ever - enticing visitors back to the capital.
10. Mamani and his neighbors must walk for blocks to two public taps to get water and then carry it back up the hill.
back up 英英釋義
verb
1. establish as valid or genuine
e.g. Can you back up your claims?
Synonym: back
2. become or cause to become obstructed
e.g. The leaves clog our drains in the Fall
The water pipe is backed up
Synonym: clog choke off clog up congest choke foul
3.
3. make a copy of (a computer file) especially for storage in another place as a security copy
e.g. You'd better back up these files!
4. move backwards from a certain position
e.g. The bully had to back down
Synonym: back off back down
5. give moral or psychological support, aid, or courage to
e.g. She supported him during the illness
Her children always backed her up
Synonym: support
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