英语短语词组词汇back sth↔up的音标、释义、翻译、用法及例句-英语短语词组词典

短语	back sth↔up
释义	ˌback ˈup\|ˌback sth↔ˈupto move backwards, especially in a vehicle后退；倒（车）You can back up another two feet or so.你可以再退两英尺左右。I backed the car up to the door.我把车倒到门前。ˌback sth↔ˈup(computing计)to prepare a second copy of a file, program, etc. that can be used if the main one fails or needs extra support给（文件、程序等）做备份；备份related nounbackup (2)
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