academic environment
学习环境
热门单词
- AA = auto-alarm
- abdominal suction tube
- abrasive band
- absurd world
- acapnia
- accent light
- accessory symptoms
- accumulator multidraft machine
- acetalized fibre
- achlusite
- acid albumin
- acid-proof lining
- acolasia
- acoustic conductivity
- acoustic frequency generator
- acoustic sounding
- acre
- acrylic sheet
- activating system
- activator
- active region
