rapid eye movement sleep

常见例句

• The two researchers called this Rapid Eye Movement or REM sleep.
  两位研究员称这种睡眠阶段为快速眼动睡眠。
• Unborn babies spend increasing amounts of time in rapid eye movement sleep.
  胎儿出生以前处于快速眼动睡眠状态的时间越来越长。
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