Wool traps your body heat, keeping the chill at bay.

羊毛织物能留住你的身体热量，阻挡寒气。

《柯林斯英汉双解大词典》

We also know that large animals can't easily get rid of excess body heat.

我们也知道，大型动物不容易排出身体多余的热量。

youdao

Hatchlings are simply too small to conserve body heat, even with insulation and countercurrent exchange systems.

刚孵出的小海龟太小了，即使有保温和逆流交换系统，也无法保持体温。

youdao

The mother's body heat is not the only thing that helps the baby.

VOA: special.2009.05.25

In that process there is a metabolic engine at work, and some people have an efficient engine so that the calories in get banked in the fat, other people have an inefficient engine, that is the calories get wasted as body heat and things like that, and they tend not to gain weight.

这过程中人体内有个工作着的代谢引擎,有些人的代谢引擎效率很高,热量便转化为脂肪储存起来,另一些人的效率低下,能量就以体温等形式被浪费了,因此他们就不容易发胖

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

You know the heat isn't going to flow from a cold body to a hot body without putting some work in to make that happen.

大家知道热量不会自发地,从冷的物理流动到热的物理,除非对它做功。

麻省理工公开课 - 热力学与动力学课程节选

It regulates the body s temperature by wicking away moisture while keeping body heat in.

FORBES: Smart, High-Tech Clothing

"As water invariably draws away more body heat, this result supports the thermoregulation hypothesis, " says Anderson.

BBC: Earth News - Why flamingoes stand on one leg

Perhaps it's body heat produced by the hike, but at first it doesn't feel all that cold, either.

FORBES: Go with the Floe