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	regime regiment region regional register regress regret regretful regrettable regular regulate regulation regurgitate rehabilitate rehearsal rehearse reign reigning reimburse rein reincarnation reinforce reinforcement reinstate reiterate

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