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More than two hundred fifty million people do not get enough nutrients from crops to stay healthy.
VOA: special.2009.07.28
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Nutrition is considered the process, the behavioral process by which people require--acquire nutrients, and use them to promote vital activities.
营养作用就是营养的供给和摄取,也就是人们摄取营养,并将其转化为生命力的行为过程
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If you're a bacterium your whole life is about swimming to nutrients and running away from things that would kill you.
假如你是一个细菌,你的一生将会在追逐养分,和逃避敌害中度过
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The plant attacks sorghum and other crops and steals water and nutrients from the roots.
VOA: special.2009.06.16
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Well the cauliflower has some nutrients that are important, but the Haagen-Dazs has immediate value because of the energy it gives you.
菜花里面含有一些重要的营养物质,但哈根达斯的价值则更直接,它可以马上为你提供能量
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The waste will add more nutrients to the soil as the pot breaks down.
VOA: special.2010.06.01
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It needs the mother for respiration,for nutrients,and so forth and so on.
需要母体协助呼吸和获得营养等等。
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The method can quickly judge the soil's ability to hold water and absorb nutrients.
VOA: special.2009.01.20
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Experts differ on this and people have their favorite nutrients, and this gets played out in diet books.
专家对此尚有争议,人们各有营养喜好,这一切在食谱书中都有体现
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Drop several seeds over the surface of the pot and cover with a thin layer of vermiculite, a substance that can hold air, water and nutrients.
VOA: special.2009.04.21
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But in some parts of the class the distinction between nutrients and food is made quite distinct.
但是在我们的某些课程中,营养素与食物之间有明确的分水岭
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White rice is often enriched to replace some nutrients lost during the refining process.
VOA: special.2010.06.30
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Okay, so the body has a way of metabolizing and making use of the food such that you can get energy or nutrients from it.
对的,身体可以代谢并利用食品,从中获取能量和营养
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Seed germination in sterile nutrients is now a common way to reproduce orchids.
VOA: special.2010.04.06
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This diagram is supposed to make you think about the intestinal tract, this tube that runs through our bodies and allows us to acquire nutrients from the environment.
这幅图意在,让你们考虑一下肠道,这个贯穿我们身体的管道,使我们能够从环境中吸收营养
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The disease kills wheat plants by robbing them of water and nutrients.
VOA: special.2009.08.18
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Nutrients get broken down into several classes and these are the constituents of food that your body uses for one purpose or another.
营养素这个问题需要花几节课来讨论,它们是食物的组成要素,供给身体吸收,支持身体机能运转
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Cabbage is a good source of vitamin C and other nutrients.
VOA: special.2009.03.03
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They deliver different amounts of energy and they also deliver different amounts of nutrients, but we'll talk about the energy for the moment.
它们提供的能量不等,提供的营养数量也是不同的,当然我们现在讨论的是能量
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Yet parsley is a good source of vitamins and other nutrients.
VOA: special.2009.06.02
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Well, both are foods, depending on your definition, but both are foods. Both have nutrients, both have things your body can make use of.
根据普遍的定义,两种都是食物,都是食物,都有营养素,都含有人类身体可吸收利用的物质
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Vermiculite is a material that can hold air, water and nutrients.
VOA: special.2011.04.26
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And so there are good things you can do with nutrients by fortifying foods with them.
这些是在食物中添加微量元素,所能得到的益处
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They are high in Vitamin C, fiber and other nutrients.
VOA: special.2010.03.09
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Now, daily values are established by the government, how much nutrients the typical person needs and then how much--what percentage of that a food provides.
每日建议摄取量是由政府制定的,代表普通人的日营养需求量,这里给出了该食物所能提供的百分比
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Beets are high in nutrients including folate, iron and fiber.
VOA: special.2009.02.17
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The macro nutrients are the big constituents of food, that's protein, carbohydrate, and fat.
大量营养素是食物重要组成来源,即蛋白质,碳水化合物和脂肪
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The material will also add nutrients to the soil.
VOA: special.2010.06.29
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The people who write about food history have called these things superfoods, not necessarily because they're super rich in all nutrients, but because they were super available.
那些写饮食史的人,将这些称之为超级食物,不一定是因为它们富含所有营养物质,而是因为它们随处可见
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It'll also give you a breakdown of the particular nutrients of that food.
它还会给出一份,该食物的营养成分表
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