Kathy in Canada wrote: My daughter likes complaining about everything in the morning, and I know that this is from lack of sleep.

VOA: special.2010.10.14

You could have--you know, snuck into my house, watched my body go to sleep, get up in the morning, follow the body around over the course the day, see it go to sleep again.

你可以偷偷地，溜进我家，看着我的肉体入睡，早上又醒来，你可以跟着我的肉体整天到处跑，到晚上再看着它入睡。

耶鲁公开课 - 死亡课程节选

because we'd have different sleep times and then sometimes I would sleep loud and she... you know.

因为我们睡觉的时间不一样，有时候我睡觉的声音大，她就会……你懂得。

与室友和睦相处 - SpeakingMax英语口语达人

But here is something that scientists now know: A team led by Professor Fu has reported the first genetic link to how much sleep we need.

VOA: special.2009.08.26

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