VOA慢速英语2016.03.18 shorter, higher, having, research, average

Rebecca949

"Humans are unique in having shorter, higher quality sleep," said David Samson, a study co-author. Samson\'s research team found that humans can prosper with an average of seven hours of sleep a day. Other primates need as many as 14 to 17 hours of sleep.________________________________. I'm Mario Ritter. 研究合著者David Samson称:"人类具有更高质且更短的睡眠模式,这是独一无二的." Samson的研究团队发现人类平均每天睡7个小时有益身心.其它灵长目动物则需要达到14个小时至17个小时的睡眠.__________________________. 我是Mario Ritter.

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