英语词汇“backup”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	backup
释义	backup I. \ˈ ̷ ̷ˌ ̷ ̷\ noun (-s) Etymology: back up 1. : backing < supported by military strength in being and strength in potential timely backup — M.B.Ridgway > < a stiff backup to the sheet so that it would not bend > 2. : an accumulation especially as a result of the stoppage of a flow < a backup of sewage > < a backup of cars before the intersection > : reserve < a backup of material for emergency use > 3. : a backward movement : a retreat from a position < asked Congress for a backup on its policy and a repeal of the law > 4. : a ball that curves or fades to the right in bowling 5. : a masonry backing to a wall 6. : the presswork on the second side of a printed sheet II. noun 1. : one that serves as a substitute or alternative < the second spacecraft would be a backup in case of failure > 2. : accompaniment 1 < the tunes included banjo and guitar backup > 3. : a copy of computer data (as a file, a program, or all the files of a hard disk) ; also : the act or an instance of making a backup III. \¦ ̷ ̷ ˌ ̷ ̷ \ adjective 1. : serving as a backup < a backup guidance system > 2. : serving as an accompaniment < he records as a soloist with backup musicians — Ellen Sander >
随便看	yellow asphodel yellow atrophy yellow avens yellow azalea yellow baboon yellow bachelor's-button yellowback yellow balm yellow balsam yellow-banded hussar yellow bark yellow-barked oak yellow-bark oak yellow bartonia yellow bass yellow basswood yellow bat yellow bear yellow beardtongue yellow bear's-foot yellow bedstraw yellow-bellied flycatcher yellow-bellied racer yellow-bellied sapsucker yellow-bellied terrapin

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