For the study,they aimed for at least ten hours of sleep each night during the season.

VOA: special.2010.06.09

How many people here on average-- from the beginning of the semester until now get on average more than eight hours of sleep a night?

这里平均有多少人-,从开学到现在,平均每晚睡超过八小时的？

耶鲁公开课 - 心理学导论课程节选

I think for the past three months, I've only had five or six hours of sleep at night.

我觉得在过去三个月里，每晚我就睡5到6个小时。

I need 实战 - SpeakingMax英语口语达人

A new study found better results in four-year-olds who go to bed around the same time every night and sleep at least eleven hours.

VOA: special.2010.06.09

Now sleep macho is "I sleep eleven hours."

现在他们会说“我睡了11小时”

耶鲁公开课 - 心理学导论课程节选

Adults should try to get seven to eight hours of sleep a night.

VOA: special.2010.06.09

I know doctors recommend that you get nine hours of sleep every night.

我知道医生们建议每晚要睡足9个小时。

I need 实战 - SpeakingMax英语口语达人

They did fine on just six hours of sleep a day.

VOA: special.2009.08.26