Throughout the night, people alternate between passive and active sleep.
整个夜晚，人们被动和主动之间轮流睡觉。
Each night we alternate between two kinds of sleep: active sleep and passive sleep.
每间两种睡眠：主动和被动睡眠晚上我们轮流睡觉。
Ground squirrels are normally active by day and sleep at night.
地松鼠一般白天活跃晚上睡觉。
REM sleep is termed 'active' sleep.
快速眼动睡眠称作“主动”睡眠。
The brain is actually more active during sleep when you know you need to remember particular information.
实际上当你知道你需要记住一些特别的信息时大脑在睡眠中更加活跃。
An active digestive system can disrupt sleep.
消化系统剧烈运动会影响睡眠。
Sleep is a peaceful rest. Another is an active rest.
另一种是积极的休息，例如到户外去走一走。
我们需要睡眠来保持活力。
我们需要睡眠来保持活力。
应用推荐