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Voice 1: The air we breathe. The water we drink. The foods we eat. These are the most important resources for human life. They are things we need to protect.
声音1：我们呼吸空气，喝水，食用食物。这些是人类生活中最重要的资源。也是我们需要保护的资源。
Voice 2: We can keep the air clean in many different ways. For example, we can burn less coal and oil. They pollute the air.
声音2：我们可以用许多种不同的方法来保持空气清洁。比如，我们可以减少煤炭和石油的燃烧。因为煤炭和石油会污染空气。
Voice 1: And we can keep water supplies clean too. We can use fewer chemicals. Chemicals sink into the ground into our drinking water.
声音1：我们也可以保持水源的清洁。我们可以减少化学物质的使用。因为化学物质会沉入地下，污染我们的饮用水。
Voice 2: But how can we protect our food?
声音2：可是我们要如何保护食物？
Voice 1: People all over the world enjoy many different kinds of foods. All of these foods were at one time very small seeds. All of the world's seeds represent crop diversity. Crops can be different in their size, height, flower colour, fruiting time, seed size, and taste. But, crop diversity is at risk of disappearing.
声音1：世界各地的人所享用的食物有许多种。所有这些食物曾经都是非常小的种子。世界上所有的种子都代表着农作物的多样性。农作物的尺寸、高度、花色、结果实的时间、种子大小和味道各不相同。但是，农作物多样性正面临消失危机。
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