back-up是什么意思？

• peeping
• juice
• 流浪者英文
• repeat
• giraffe
• 局外人英文
• amazing
• toxicity
• satisfaction
• 领域英语
• PEGGING
• 实施英文
• lycopene
• volume
• lesson
• pear
• failure
• front
• modernize
• droplets
• predict
• algiers
• 呼吁英语
• searches
• crayon
• PAXLOVID怎么读
• silver
• cloud
• default
• passage

• BARRIE
• organizations
• text
• sweater
• scared
• ticket
• begins
• mind
• brat
• 来源英语
• disappointed
• narrow
• searches
• tourist
• 权限英文
• 参数英文
• supper
• various
• 解决方案英文
• intermission
• saturday
• client
• bombarded
• tomato
• monitor
• general
• profile
• 纪念品英语
• 队长的英文
• theatre

• kenned
• kens
• kenneled
• kenneling
• keratectomies
• keratoplasties
• kerbs
• kerchiefs
• kestrels
• ketches
• kettles
• kettledrums
• keyboarded
• keyboarding
• keynoted
• keynoting
• keypads
• keystones
• keystrokes
• Khmers
• kibbled
• kibbles
• kibbutzim
• kibitzed
• kibitzing
• kibitzes
• kiddies
• kidnaps
• kidnappings
• killdeers