back up
1.(使)后退；倒退回去；倒(車)：
例句:He backed up to the loading platform.
他(把車)倒退到裝貨平臺.
2.(使)倒著上：
例句:If you can't drive up the hill forwards,you'll have to back the car up.
假如你不能把轎車正著開上山,就只好倒著開上去.
3.支持；援助；為…撐腰：
例句:John is expecting us to back him up at the next meeting.
約翰期待我們在下次會(huì)議上支持他.
4.證實(shí)：例句:Will you back up my story to the police?
你愿證實(shí)我向警察講述的情況嗎?
5.補(bǔ)充：例句:The argument is to be backed up by a lot of facts.
這個(gè)論據(jù)將補(bǔ)充大量事實(shí).
6.給…裝上背襯：
例句:to back up a shopwindow with cardboard
用卡紙墊襯商店櫥窗背部
to back up a bookcase with fibreboard
用纖維板襯書櫥背部
7.(使)積壓,(使)擁塞,(使)阻塞,堵塞；(使)積滯,(使)聚集；使(車輛等)排成長龍：
例句:Mail is backing up at the post office.
郵件積滯在那個(gè)郵局里.
Traffic backed up for a mile.
交通阻塞長達(dá)一英里.
8.[美國英語](流水受阻后)積聚上升起,積聚后倒流(或溢出),淤塞,泛濫；(障礙物等)阻擋(流水),使(流水)積聚上升：
例句:The flood water backed up the pipes for the dirty water.
洪水使水管阻塞而倒流出了污水.
9.【航海學(xué)】拉緊(帆索未系住的一端)：
例句:The boat is pulling away,back up there!
船要松開了,把繩子拉緊!
10.【體育】(球員)給…補(bǔ)位,后退補(bǔ)位,跑到(本隊(duì)球員)背后策應(yīng)；接應(yīng)：例句:In football the linebacker backs up the linemen.
在足球賽中后衛(wèi)接應(yīng)前鋒.
11.【印刷】印(一印張的)反面
12.【計(jì)算機(jī)】作(數(shù)據(jù)文件的)備份,把…備份,制作(…的)后備軟盤,備份復(fù)制,后備復(fù)制(數(shù)據(jù))
13.[澳大利亞英語]重復(fù)(on)
14.[俚語](將注射器插在靜脈里,把混入海洛因的血液)抽出或輸入