The third part of energy expenditure is physical activity.

第三种的能量消耗就是体力活动。

He's always keen on physical activities.

他总是对体育活动很感兴趣。

Let's talk about physical activity during childhood.

让我们来谈谈儿童时期的体育活动。

Somehow the energy they used for physical activity was being offset or conserved elsewhere.

出于某种原因，他们用在身体活动的能量被抵销或储存在别的地方了。

An hour of physical activity is " ideal, " he adds.

他补充说，每天一小时的身体锻炼是比较“理想”的。

The more physical activity I do, the better I feel.

我锻炼得越多，感觉就越好。

Qualities you certainly wouldn't want during your physical activities.

这样的健身质量，是你绝对不想要的。

Today we are going to talk about a favorite physical activity.

今天我们将探讨一项很受欢迎的体育运动。

'Exercise' is a physical activity to stay healthy or become stronger.

“exercise（锻炼）”是一种保持健康或使自己变得更强壮的身体活动。

Their eating and bedtime schedules were changed and physical activity decreased.

他们的进食和就寝时间发生了变化，体力活动减少。

Experts agree that physical activity is important for physical growth.

专家认为体育活动对身体发育十分重要。

So that's why we're interested in physical activity.

这就是我们对体育活动感兴趣的原因。

Life satisfaction went up, vegetable consumption, went up, physical activity, went up.

生活满意度提高了，蔬菜消费增加了，体育锻炼增加了。

The scariest part is that this is regardless of your physical activity.

最可怕的是，你所做的体育活动对此不会有任何帮助。

The public service system for fitness and physical activity will be improved.

完善全民健身公共服务体系。

This means you start doing physical activity to become fit and strong.

这意味着你开始做体育活动来变得健康和强壮。

Which kinds of physical activities are important for children to participate in?

哪些体育活动对孩子来说是十分重要的？

The latter of which take part in many more physical activities.

那些长时间在户外的孩子参与的体育活动更多。

So by mental and physical activity, they can achieve that.

因此，通过精神和身体活动，他们可以做到这一点。

However, regular physical activity may actually mean you are less tired in general.

然而，有规律的体育活动实际上可能让你不那么累。