我们需要更多的食物来养活世界上不断增长的人口。
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。
Large animals like elephants, say, they require much more food and energy and have fewer offspring than smaller animals.
我们需要更多的食物来养活人类、同时却又要占用更少的土地和耗费更少的水资源。
We need to grow more food to feed the human population, and it needs to be done on less land and with less water.
接着又开始引起了自噬现象，包括释放脂肪酸，而脂肪酸会释放饥饿信号告诉大脑需要更多的食物。
That autophagy then set off a series of steps, which included releasing fatty acids, that resulted in the release of hunger signals, telling the brain that more food was needed.
即使你午餐摄入了比需要更多的卡路里，你血糖水平很低以至于身体认为需要更多的食物。
Even though you ate more calories at lunch than you really needed, your blood sugar is so low that your body thinks it needs more food.
当感觉不幸福时，你知道不需要更多的食物，或者其他麻醉人的东西；你要的是，用全新的方法爱自己。
When you are feeling unhappy, you know you don't need more food or addictive substances, you need to love yourself in brand new ways.
科学家警告说“大胃口”的人越来越多意味着需要更多的食物——这是导致二氧化碳气体让全球变暖的主要原因。
Scientists warned that the increase in big-eaters means more food production - a major cause of CO2 gas emissions warming the planet.
在当今世界，人口在增长，城市在扩张，气候在变化，人们需要更多的食物，因此我们迫切需要健康的土壤，以确保其能够提供基本服务。
In a modern world where the population is growing, cities are expanding, the climate is changing and more food is needed, we urgently need healthy soils to ensure the essential services they provide.
体型大的动物比体型小的需要更多食物，但体型小的动物有更高的代谢率。
Larger animals require more food than smaller animals, but smaller animals have a higher metabolic rate.
首先，因为食物运输的距离太长，我们需要更多的飞机、卡车和船只来运送食物。
First of all, because food travels such long distances, we need more planes, trucks and ships to move the food.
百胜餐饮集团的首席财务官里克·卡鲁奇表示，“我们的想法是，通过在菜单上增加更多种类的食物，我们向消费者销售的产品可以满足他们全天的需要。”
"The idea is that by having a greater range of things on the menu, we can sell to consumers products they want all day," says Rick Carucci, the chief financial officer of Yum! Brands.
数量不断增长的大象需要更多的空间和食物来生存。
The growing population of elephants need more space and food to live.
根据中医的思想，人们需要吃带有更多阳气的食物以防止寒凉伤害身体。
According to traditional Chinese medicine thoughts, people need to eat food that has more yang energy to prevent cold from harming their bodies.
只有在需要时，才会有更多的食物送上餐桌。
随着更多的小孩出生，需要的食物也就越多。
少进食激发了饥饿的感觉；因此当人们面前有食物时，他们便会食得更多以至超出他们身体需要。
Fewer meals stimulate hunger pangs; thus, as soon as people get access to food, they eat a lot more than the body actually needs.
对幼儿来说，在几个月里可能需要10次或更多的尝试来推介一种食物。
In young children, it may take 10 or more attempts over several months to introduce a food.
看起来消化食物的过程会导致你需要更多的睡眠。
That makes sense to me because digesting heavier foods will push you to need more sleep.
而当时农业正发生着变化：经过多年的经济紧缩之后，英国人需要更多，但不会更贵的食物。
Farming was changing, though. After years of austerity, the British wanted more, but not more expensive, food.
当然，这只是一方面，肉类和牛奶制造了人体每天所需热量的15%，如果素食，我们需要吃更多的食物补充这部分能量。
That's only part of the story, of course: meat and milk make up about 15 per cent of calories eaten by humans, so we would need to eat more grain to compensate for their loss.
每年有更多的人口需要养活，而现有人口中的很大一部分还没有得到足够的像样的食物。
More mouths have to be fed every year and yet a high proportion of the existing population are not getting enough of the right kind of food.
在较高温度生长的树叶将含有更多的纤维性物质，缺乏易于消化的蛋白质。这也意味着以树叶为食的动物需要更长的时间消化食物。
Leaves that grow in hotter air contain more fiber and less digestible protein, meaning leaf-eaters would take longer to process their food.
那些物理变化需要更多的能量，所以食物热加工可能是这些变化的助推器。
Those physical changes required more energy, and exposing food to fire may have provided that boost. Of course, a legacy of evolution is that modern humans often gain too much weight.
如果继续采用传统耕作模式，将会需要更多土地才能栽种足够的食物来养活这些人。
More land will be needed to grow enough food to feed them if traditional farming practices continue.
随着世界人口的增长需要更多包括海鲜在内的食物。
As the world population grows, there is a need for more food - including seafood.
对幼儿来说，在几个月里可能需要10次或更多的尝试来推介一种食物。㳑。
In young children, it may take 10 or more attempts over several months to introduce a food.
为了阻止自由基对人体细胞的危害，我们需要吃更多的抗氧化剂含量高的食物。
To prevent free radicals from doing damage to the cells in our bodies, we need to consume more foods that have high levels of antioxidants.
因为洞穴鱼可能并不需要更少的睡眠——它们需要保持清醒，搜寻更多的食物，毕竟洞穴中食物不仅量少而且难以寻找。
Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.
因为洞穴鱼可能并不需要更少的睡眠——它们需要保持清醒，搜寻更多的食物，毕竟洞穴中食物不仅量少而且难以寻找。
Because the cave fish may not need less sleep-they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.
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