Your brain depends on sleep to catch up on mental filing and organizational tasks - cleaning up all the messes made during a busy day of activity.

大脑依靠深度睡眠来记忆归档和组织任务——清楚白天忙碌攒下的杂事。

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Reading aloud to them just before bedtime is a great idea, because it quiets them down after a day of activity, it gives you quality bonding time together, and it gets them into the habit of reading.

睡前朗读一本书很不错，因为这会让他们在一天的活动后安静下来。

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After a day of air and activity, you should be in the mood for a good meal.

在户外活动了一天，你应该想好好吃一顿。

《柯林斯英汉双解大词典》

On an average day, nearly everyone fifteen years of age and older took part in a non-work activity like watching television, socializing or exercising.

VOA: special.2011.07.22

We've been working to make our schools healthier. We've been working to increase the amount of physical activity that our kids are getting, not just during the day at school but also at home.

VOA: special.2010.06.07

"I think the actions the United States military took the other night, the other day,yesterday could certainly have that affect where people are less inclined to engage in that type of activity,"

VOA: standard.2009.04.13

It's expensive at 0.85% a year in fees, and very liquid, with 2 million shares a day of activity.

FORBES: Magazine Article

Users then input contextual data tags like time of day, type of activity and the surrounding environmental conditions to allow them to track variables that may affect their focus.

ENGADGET

But following what a DfID spokesman called "a day of intense activity searching for an alternative aircraft", a C17 military transport aeroplane was located which is expected to leave from RAF Brize Norton on Friday night.

BBC: UK rescue team head to Indonesia