英语词组back up是什么意思，短语翻译、用法及例句-英语词组固定搭配大全

词组	back up
释义	back upv.1To move backwards. 向后移动；后退；倒退。◆ The train was backing up.火车正在向后移动。2To help or be ready to help; stay behind to help; agree with and speak in support of．帮助；支持；证实。◆ Jim has joined the Boy Scouts and his father is backing him up.吉姆参加了童子军，他的父亲很支持他。3To move behind (another fielder) in order to catch the ball if he misses it. 跑到（另一名外场手）背后策应。◆ The shortstop backed up the second baseman on the throw.球掷出时，游击手跑到二垒手背后策应。
随便看	with flying colors with good grace within an ace of within an inch of one's life within a stone's throw within bounds within call within call or within hail within hail within reason with might and main with open arms without a hitch without batting an eye without batting an eyelash without batting an eye or without batting an eyelash without fail without further ado without further ado or without much ado without much ado without question with reference to with reference to with regard to with regard to

英语词组固定搭配大全包含9718条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。