The boundaries are vague是什么意思？

• 领域英语
• aspect
• ticket
• profile
• repeat
• satisfaction
• 实施英文
• conflict
• bombarded
• intermission
• crayon
• algiers
• 分配英文
• giraffe
• tourist
• candy
• modernize
• monitor
• searches
• failure
• 呼吁英语
• emergency
• brat
• 参数英文
• organizations
• various
• ultra
• amazing
• scared
• peeping

• reveal
• chess翻译
• passage
• approaches
• erased
• prompt
• polite
• BARRIE
• lycopene
• 流浪者英文
• theatre
• saturday
• 方案英语
• searches
• mind
• 局外人英文
• 造型的英文
• 确认英文
• pear
• tomato
• cloud
• bothering
• maths
• fiercely
• rice
• volume
• committing
• narrow
• client
• firmness

• Bolsheviki
• Bolsheviks
• Bolshevism
• Bolshevist
• Bolshevistic
• Bolshevize
• bolshie
• bolshy
• bolster
• bolt
• boltel
• bolter
• bolthole
• boltway
• boltwoodite
• bolus
• bolusalba
• BOM
• bomb
• Bombacaceae
• bombard
• bombarder
• bombardier
• bombardment
• bombardon
• bombasine
• bombast
• bombastic
• bombastically
• Bombay