Most people dream for two to six hours each night, but at most they recall only about a half-hour's worth, usually the last one in the morning.

大多数人每天晚上做梦的时间有两到六个小时，但是顶多能够回想起大概半个小时的梦，通常是早上最后的一个梦。

youdao

A OK. Dinner tomorrow night - I'll see you at six.

A好的。明天晚上一起吃晚饭——我六点见你。

youdao

Before I used to go and work from six in the morning to six at night.

之前我都是早上六点起来工作晚上六点手工。

youdao

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

They were followed by two more new entries, Will Young's Switch It On in at number five and Liberty X's A Night to Remember in at six.

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The BBC understands that at one stage on Monday night up to six emergency vehicles were queued at the doors of the Royal waiting to deliver patients and four had to sit for more than an hour-and-a-half.

BBC: Increase in waits in emergency wards

Be sure to get at least six hours per night as recent studies in California suggests that people who have less than six hours a night have a higher mortality rate.

CNN: Vital Signs health tips