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	scuffle sculpt sculpture scum scupper chiefly Brit. scurrilous scurry scuttle sea seafaring seal seam seaman seamy sear search searching searing seaside season seasonable seasoned seasoning seat seating

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