traced back是什么意思？

• supper
• cheese
• ultra
• theatre
• lake
• sweater
• aspect
• 方案英语
• 抛弃英文
• juice
• scared
• dragon
• 造型的英文
• banger
• client
• disappointed
• text
• 权限英文
• rice
• monitor
• amazing
• lycopene
• 来源英语
• front
• modernize
• 导师英文
• 缺陷英文
• bothering
• candy
• satisfaction

• 领域英语
• vehicle
• volume
• fake
• tourist
• 确认英文
• PEGGING
• organizations
• passage
• searches
• toxicity
• silver
• general
• general
• ticket
• tomato
• committing
• algiers
• approaches
• saturday
• explore
• fiercely
• crayon
• erased
• 参数英文
• brat
• conflict
• lesson
• permitted
• 局外人英文

• rockets
• applies
• owns
• applying
• Connell
• medicide
• handbrake
• nearer
• Ravitch
• Viewing
• events
• appraisals
• prompted
• employers
• recruitment
• slid
• appraising
• subtlety
• appreciates
• whistled
• expressed
• Saudi
• presented
• stronger
• Hernandez
• Hastings
• warmer
• Tom
• apprehended
• reflects