英语词汇“backup”的释义、区别辨析及用法例句-英语同义词词典

单词	backup
例句	backup noun •never enter an unsecured area without backup:help, support, assistance, aid \| reinforcements, reserves, additional resources.
随便看	slash slate slatternly slaughter slave slave driver slaver slavery slavish slay slaying sleazy sled sleek sleep sleepiness sleepless sleepwalker sleepy sleight of hand slender sleuth slice slick slide

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