trace to its source是什么意思？

• pear
• rice
• bothering
• various
• 分配英文
• conflict
• candy
• narrow
• client
• silver
• disappointed
• approaches
• mind
• saturday
• fiercely
• brat
• 旋律的英文
• polite
• 参数英文
• profile
• passage
• monitor
• 参与者英文
• 缺陷英文
• peeping
• repeat
• cheese
• giraffe
• PEGGING
• giraffe

• front
• begins
• 抛弃英文
• dragon
• committing
• lake
• 呼吁英语
• BARRIE
• general
• searches
• banger
• autumn
• ultra
• 队长的英文
• organizations
• chess翻译
• default
• 纪念品英语
• 实施英文
• searches
• scared
• juice
• neck
• 领域英语
• tourist
• 方案英语
• theatre
• volume
• algiers
• sweater

• East facing
• insomnic
• shako
• congressane
• callys
• the jaws of death
• Circle occupation
• axle shaft
• commingler
• unit body
• ping
• Maiden show
• most excessively
• confer favours
• agametophyte
• galt
• acticarbon
• spout hole
• radix scrophulariae
• Fading spirit
• go in a ring
• decline with thanks