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back up
备份;支持;倒车
Please back up your files regularly.(请定期备份你的文件。)
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back down
退让;放弃立场
He refused to back down during the argument.(他在争论中拒绝让步。)
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back off
后退;停止施压
The police told the crowd to back off.(警察让人群后退。)
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back out
退出(协议、承诺等)
She backed out of the deal at the last minute.(她在最后一刻退出了交易。)
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back away
慢慢后退;撤回
He backed away from the snake carefully.(他小心地从蛇身边后退。)
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get back
回来;取回
I’ll get back to you tomorrow.(我明天再回复你。)
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pay back
偿还;报复
I’ll pay you back next week.(我下周还你钱。)
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turn one’s back on
背弃;拒绝帮助
Don’t turn your back on your friends.(不要背弃你的朋友。)