do sth. which one has done before是什么意思？

• approaches
• saturday
• various
• vehicle
• narrow
• passage
• general
• reveal
• 呼吁英语
• 纪念品英语
• modernize
• candy
• 长颈鹿英语怎么说
• failure
• 抛弃英文
• emergency
• firmness
• rice
• droplets
• fiercely
• client
• 来源英语
• 方案英语
• chess翻译
• 确认英文
• supper
• banger
• BARRIE
• polite
• committing

• giraffe
• amazing
• brat
• front
• conflict
• 分配英文
• mind
• 实施英文
• 流浪者英文
• giraffe
• theatre
• 造型的英文
• crayon
• neck
• tourist
• scared
• fake
• aspect
• 缺陷英文
• general
• searches
• algiers
• sweater
• passage
• PEGGING
• disappointed
• ticket
• 权限英文
• monitor
• maths

• chloromatous sarcoma
• vermouths
• up to the present
• crabbily
• errabund
• lay of land
• soft and floury
• recreation bouncer
• rosacic
• guide channel
• gaze fixedly
• lateral axis
• assmus
• roll back
• SET Composite Index
• agrichemical
• thin layer
• maniocca
• goal net
• the body of a ship