audio-visual aids是什么意思？

• failure
• giraffe
• 流浪者英文
• autumn
• candy
• begins
• dragon
• satisfaction
• 缺陷英文
• prompt
• fake
• organizations
• bothering
• 旋律的英文
• sweater
• BARRIE
• saturday
• general
• fiercely
• narrow
• 导师英文
• repeat
• profile
• amazing
• chess翻译
• disappointed
• conflict
• lycopene
• 参数英文
• searches

• intermission
• 权限英文
• 纪念品英语
• peeping
• vehicle
• maths
• giraffe
• pear
• lesson
• scared
• droplets
• 领域英语
• neck
• modernize
• PEGGING
• passage
• rice
• firmness
• toxicity
• panicked
• text
• 实施英文
• mind
• committing
• polite
• emergency
• cloud
• crayon
• theatre
• client

• airproof
• airpump
• airs
• airscape
• airscoop
• airscrew
• airsecond
• airship
• airsick
• airsickness
• airslide
• airslusher
• airspace
• airspeed
• airspeedometer
• airstart
• airstream
• airstrip
• airtight
• airtow
• airveyor
• airview
• airvoid
• airwave
• airwaves
• airway
• airwoman
• airworthiness
• airworthy
• airy