REM
abbreviation /rem/,  /ˌɑːr iː ˈem/
  /rem/,  /ˌɑːr iː ˈem/
- rapid eye movement(describes a period of sleep during which you dream and your eyes make many small movements)快速眼动(夜间做梦时眼睛快速而细微的移动) - REM sleep is an essential part of brain function.快速眼动睡眠是大脑功能的重要组成部分。 
 Wordfinder- doze
- dream
- drowsy
- insomnia
- oversleep
- REM
- sedative
- sleep
- soporific
- tired
 
- REM sleep is an essential part of brain function.