helical surface是什么意思？

• 抛弃英文
• saturday
• supper
• firmness
• general
• polite
• passage
• organizations
• disappointed
• satisfaction
• 流浪者英文
• searches
• failure
• prompt
• 参与者英文
• toxicity
• narrow
• lake
• lycopene
• emergency
• bothering
• mind
• giraffe
• ultra
• candy
• giraffe
• 参数英文
• theatre
• fiercely
• autumn

• searches
• 呼吁英语
• cheese
• general
• profile
• juice
• predict
• 权限英文
• text
• crayon
• brat
• droplets
• bombarded
• intermission
• default
• dragon
• 纪念品英语
• panicked
• 缺陷英文
• 局外人英文
• rice
• monitor
• aspect
• explore
• BARRIE
• 方案英语
• 造型的英文
• permitted
• sweater
• various

• paper cutter
• the vocal cords
• Daizhuo
• caput distortum
• unsophisticate
• Photos by Seb
• stap
• short column
• ecpyesis
• stratocirrus
• Or grouping
• brief introduction
• thin paper
• unmatured
• zip fastener
• fingerlike
• pay court to
• Meimei
• I always say
• The diviner