英语词汇“back up”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	back up
释义	back up I. intransitive verb 1. of water checked by an obstruction : to rise and flow backward or overflow adjacent areas < clogged pipes caused drain water to back up into the house > < a dammed stream that backs up and floods a meadow > 2. of nonliquid objects : to accumulate through lack of an outlet in undesirable or unmanageable excess or in a congested state < supplies are ample, if not already backing up in the hands of the producers — Biddle Survey > < cars back up for blocks on either side of the Main Street traffic light — Louise Levitas > 3. cricket a. of a batsman : to move forward of one's crease in readiness to run b. of a nonstriker : to so move as the ball is delivered *transitive verb* : to hold back (as a river) usually causing an accumulation < this dam … backs up billions of gallons of water to prevent floods — N.M.Clark > II. transitive verb : to make a backup of (a computer file or data) to protect against accidental loss ; also : to make backups of all the files on (a hard disk)
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