degree of difficulty是什么意思？

• general
• lesson
• peeping
• failure
• PEGGING
• dragon
• 旋律的英文
• 来源英语
• giraffe
• supper
• volume
• BARRIE
• ultra
• tourist
• crayon
• monitor
• committing
• polite
• lake
• 流浪者英文
• approaches
• 缺陷英文
• rice
• aspect
• panicked
• bothering
• algiers
• 确认英文
• autumn
• modernize

• banger
• sweater
• juice
• amazing
• toxicity
• various
• giraffe
• ticket
• explore
• firmness
• searches
• 方案英语
• 队长的英文
• 呼吁英语
• narrow
• saturday
• droplets
• candy
• text
• profile
• reveal
• fake
• 纪念品英语
• 领域英语
• prompt
• repeat
• 造型的英文
• intermission
• neck
• default

• Difficult to build
• ruvCZ
• pZnsB
• KRrhg
• tOFRR
• laughing merrily
• lslam
• near of kin
• Wuchang
• sob and sniffle
• sob intermittently
• RIxSG
• sequence of events
• wqnA
• hemorrhaging