| 单词 | back up |
| 释义 | back up1.■(使)后退；倒退回去；倒(车)：He backed up to the loading platform.他(把车)倒退到装货平台。2.■(使)倒着上：If you can't drive up the hill forwards, you'll have to back the car up.假如你不能把轿车正着开上山，就只好倒着开上去。3.■支持；援助；为…撑腰：John is expecting us to back him up at the next meeting.约翰期待我们在下次会议上支持他。4.■证实：Will you back up my story to the police?你愿证实我向警察讲述的情况吗?5.■补充：The argument is to be backed up by a lot of facts.这个论据将补充大量事实。6.■给…装上背衬：to back up a shopwindow with cardboard用卡纸垫衬商店橱窗背部to back up a bookcase with fibreboard用纤维板衬书橱背部7.■(使)积压，(使)拥塞，(使)阻塞，堵塞；(使)积滞，(使)聚集；使(车辆等)排成长龙：Mail is backing up at the post office.邮件积滞在那个邮局里。Traffic backed up for a mile.交通阻塞长达一英里。8.■[美国英语](流水受阻后)积聚上升起，积聚后倒流(或溢出)，淤塞，泛滥；(障碍物等)阻挡(流水)，使(流水)积聚上升：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.■【航海学】拉紧(帆索未系住的一端)：The boat is pulling away,back up there!船要松开了，把绳子拉紧!10.■【体育】(球员)给…补位，后退补位，跑到(本队球员)背后策应；接应：In football the linebacker backs up the linemen.在足球赛中后卫接应前锋。11.■【印刷】印(一印张的)反面12.■【计算机】作(数据文件的)备份，把…备份，制作(…的)后备软盘，备份复制，后备复制(数据)13.■[澳大利亚英语]重复(on)14.■[俚语](将注射器插在静脉里，把混入海洛因的血液)抽出或输入 |
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