concave surface是什么意思？

• mind
• fiercely
• bothering
• general
• sweater
• front
• pear
• giraffe
• 纪念品英语
• text
• tourist
• 缺陷英文
• passage
• profile
• default
• conflict
• lesson
• rice
• 来源英语
• explore
• 参与者英文
• candy
• amazing
• 实施英文
• 抛弃英文
• chess翻译
• intermission
• 导师英文
• saturday
• autumn

• monitor
• erased
• 方案英语
• neck
• general
• reveal
• organizations
• giraffe
• searches
• maths
• narrow
• lycopene
• 权限英文
• satisfaction
• 确认英文
• 旋律的英文
• firmness
• searches
• ultra
• committing
• bombarded
• passage
• predict
• 流浪者英文
• dragon
• silver
• lake
• 造型的英文
• 长颈鹿英语怎么说
• juice

• Small groups
• more intimate
• ofdifferent
• The Wrestler
• of the same kind
• winding drum
• whooshing
• crrupt
• rosaries
• saxophones
• preempts
• withered and fallen
• unbegrenzte
• brickie
• mycorrhizas
• mycorrhizae
• moring
• asswimming
• descripe
• grinding wheel head
• molder
• choose from
• would you mind
• Or energy
• without stop
• blasting machine
• Force to do
• in imminent danger
• land of happiness
• assign a topic