back-up
英
['bæk'ʌp]
美
['bæk'ʌp]
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名词 backup:
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an accumulation caused by clogging or a stoppage
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someone who takes the place of another (as when things get dangerous or difficult)
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a musical part (vocal or instrumental) that supports or provides background for other musical parts
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(computer science) a copy of a file or directory on a separate storage device
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the act of providing approval and support
动词 back up:
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give moral or psychological support, aid, or courage to
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move backwards from a certain position
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establish as valid or genuine
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make a copy of (a computer file) especially for storage in another place as a security copy
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become or cause to become obstructed
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用作名词 (n.)
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Liu Bei was given 1,000 troops as the back up force.
刘备带一千人马作后援。
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You can back up and restore full-text catalogs.
可以备份和还原全文目录。
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This option will back up files on the volume.
该选项将备份卷中的文件。
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You should carry a spare wheel in the back of your car.
你应在车后带一个备用的轮胎。
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He asked Congress for stand-by authority to call up the reserves.
他要求国会授予他征召后备役的备用权力。
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