It's because food is almost always within reach, and they don't have to store up a lot of food energy for the harsh winters.
这是因为食物几乎总是触手可及的，而且它们不需要为严酷的冬天储存大量的能量。
Possessing approximately 40% less food energy (calories), Xylitol is a low-calorie alternative to refined and artificial sugars.
对比起提炼的和人工合成的糖类，木糖醇是一种低卡路里的代替品，它减少食物中差不多40%的能量。
Lastly, because of fiber's low digestibility, it provides little or no food energy and does not significantly impact glucose and insulin levels.
由于纤维不易消化，它产生很少或不产生食物能量，也不会明显影响葡萄糖和胰岛素浓度。 酮症包括脂类分解——脂肪细胞内储存的某些脂质在其中转化为血液。
The population with 40 percent obese people requires 19 percent more food energy for its total energy expenditure than the population with 3.5 percent obese people, the study showed.
研究显示，拥有40%肥胖率的人口，其所需能源消耗要比肥胖率为3.5%的人口多19%。
Your metabolic rate is the speed at which your body transforms food into energy.
你的新陈代谢率就是你身体将食物转换成能量的速度。
A moderation in food prices helped to offset the first increase in energy prices.
食品价格的降低有助于抵消能源价格的第一次上涨。
Food onshore is very limited and there is simply nothing comparable to a seal that provides a polar bear with fat and energy.
陆上食物是非常有限的，根本没有什么能与一只海豹所能给北极熊提供脂肪和能量相比。
Large animals like elephants, say, they require much more food and energy and have fewer offspring than smaller animals.
比如说，像大象这样的大型动物比小型动物需要更多的食物和能量，而其后代比小型动物更少。
Most young trees have large, deep green leaves so that they can catch enough sunlight and change it into their food and energy.
大多数小树都有大大的深绿色叶子，这样它们就能捕捉到足够的阳光，并将其转化为食物和能量。
She exhibits the idealism common to many advocates of sustainability, be it in food or in energy.
无论是在食品领域还是能源领域，她都展示了许多可持续发展倡导者所共有的理想主义。
Without food we get hungry; without energy we feel cold.
没有食物，我们就会挨饿；没有能量，我们会感到寒冷。
A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way.
日常摄入的水、食物和各类能量与输出的污水、固体废物、空气污染物、能源和经过某种转化的物质相匹配。
There couldn't be any plant or animal life since there's no sunlight, no source of energy to make food.
那里不可能有任何植物或动物，因为没有阳光，没有能源来制造食物。
Oxygen is essential for the metabolic process known as cell respiration that allows cells to efficiently harvest energy from organic food.
氧气在细胞呼吸的新陈代谢过程中是必不可少的，它能使细胞有效地从有机食物中获取能量。
For animals with small stomachs, it takes lots of energy to constantly look for food and then digest it.
对于胃部较小的动物来说，不断寻找食物并消化的过程会消耗大量能量。
They had enormous stomach capacity, the ability to digest food over a long period, converting it to energy at a slower pace, saving it for later.
他们有巨大的胃容量，能够在长时间段消化食物，以较慢的速度将食物转化为能量，为以后储存。
The recent spike in food prices around the world that you've all heard of is because of rising energy costs.
你们都听说过，最近全球食品价格的上涨是由于能源成本的上升。
Since much of this energy comes from the utilisation of fossil fuels, wastage of food potentially contributes to unnecessary global warming as well as inefficient resource utilisation.
由于这些能量大部分来自化石燃料的利用，因此食物浪费有可能导致不必要的全球变暖以及资源利用效率低下。
Since much of this energy comes from the utilization of fossil fuels, wastage of food potentially contributes to unnecessary global warming as well as inefficient resource utilization.
由于这种能源大部分来自化石燃料的使用，浪费食物可能导致不必要的全球变暖以及低效率的资源利用。
The sea slugs are so good at gathering energy from the sun that they can live up to nine months without having to eat any food.
海蛞蝓非常善于从太阳中收集能量，它们可以在不吃任何食物的情况下存活九个月。
In recent years, a growing body of research has shown that our appetite and food intake are influenced by a large number of other factors besides our biological need for energy.
近年来，越来越多的研究表明，我们的食欲和食物摄入量除了受对能量的生理需求影响外，还受到许多其他因素的影响。
In recent years, a growing body of research has shown that our appetite and food intake are influenced by a large number of other factors besides our biological need for energy
近年来，越来越多的研究表明，我们的食欲和食物摄入量除了受对能量的生理需求影响外，还受到许多其他因素的影响。
There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity.
除了粮食产量之外，还有许多不同的方法来衡量农业表现：能源使用、环境成本、水的纯度、碳足迹和生物多样性。
Smaller animals can therefore live where there is less food, provided that such food is of high energy content.
因此，较小的动物可以生活在食物较少的地方，只要这些食物的能量含量较高。
When food is in short supply, a ruminant can last longer than a nonruminant because it can derive more energy out of the same food.
当食物短缺时，反刍动物比非反刍动物寿命更长，因为反刍动物可以从同样的食物中获得更多的能量。
Wasting food means losing not only life-supporting nutrition but also precious resources, including land, water and energy.
浪费食物不仅意味着失去维持生命的营养，还意味着失去宝贵的资源，包括土地、水和能源。
Energy is an essential resource across the entire food production cycle, with estimates showing an average of 7-10 calories of input being required in the production of one calorie of food.
在整个食品生产周期中，能量是一种必不可少的资源，据估计，生产一卡路里的食品平均需要7-10卡路里的投入。
To prepare for this before winter, these animals eat extra food to become fat which gives them the energy they need while they sleep.
为了在入冬前做好准备，这些动物会吃更多的食物来增肥，从而获取睡眠时所需的热量。
Children expend a lot of energy and may need more high-energy food than adults.
孩子们耗能多，可能比成人需要更多高能量的食物。
The potential to provide 60-100% more food by simply eliminating losses, while simultaneously freeing up land, energy and water resources for other uses, is an opportunity that should not be ignored.
仅仅通过减少损失就有可能增加60%-100%的粮食供应，同时腾出土地、能源和水资源用于其他用途，这是一个不应被忽视的机会。
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