air extracting pump是什么意思？

• failure
• passage
• brat
• BARRIE
• giraffe
• 队长的英文
• tomato
• 来源英语
• neck
• predict
• vehicle
• volume
• 旋律的英文
• peeping
• begins
• lake
• various
• PEGGING
• mind
• 局外人英文
• 纪念品英语
• autumn
• 流浪者英文
• juice
• front
• cheese
• toxicity
• searches
• sweater
• passage

• aspect
• droplets
• maths
• pear
• scared
• conflict
• reveal
• 抛弃英文
• candy
• permitted
• ticket
• text
• tourist
• silver
• bombarded
• rice
• fake
• 参与者英文
• panicked
• amazing
• polite
• banger
• searches
• 解决方案英文
• crayon
• committing
• monitor
• profile
• fiercely
• explore

• camps
• readied
• refugees
• struck
• artists
• condoms
• MPs
• abstained
• months
• principles
• poems
• books
• noticed
• stopped
• bothering
• discussions
• resolutions
• discussing
• policies
• teachers
• ve
• lengths
• paying
• pounds
• disagrees
• grows
• United
• States
• pages
• illustrated