如题所述
第1个回答 推荐于2017-09-27
back
up
1．drive or move backwards倒车
*He had to back his car up because the mountain
path was too narrow．由于山路太窄，他不得不把车子倒了回来。
2．support 支持
*I hope you will back me up in this
argument．我希望在这场争论中你能支持我。
*Nobody backed her up when she protested against
the decision．当她反对这项决定时，没人支持她。
3．block； hold up阻塞
*The vehicles were backed up because of the
accident．车辆因交通事故受阻了。
up
1．drive or move backwards倒车
*He had to back his car up because the mountain
path was too narrow．由于山路太窄，他不得不把车子倒了回来。
2．support 支持
*I hope you will back me up in this
argument．我希望在这场争论中你能支持我。
*Nobody backed her up when she protested against
the decision．当她反对这项决定时，没人支持她。
3．block； hold up阻塞
*The vehicles were backed up because of the
accident．车辆因交通事故受阻了。
第2个回答 2015-03-04
back-up
[美] ['bæk'ʌp]
[英] ['bæk'ʌp]
备份
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[美] ['bæk'ʌp]
[英] ['bæk'ʌp]
备份
为你解答，敬请采纳，
如果本题还有疑问请追问，Good luck!本回答被网友采纳
