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来源：雅诚德英语网
To feed the seven billion people on Earth, most farmers today are growing only species of plants and farming only species of animals that are easy to produce in large numbers.
为了养活地球上70亿人，今天的大多数农民只种植或养殖易于大量生产的植物和动物。
To feed the seven billion people on Earth, most farmers today are growing only species of plants and farming only species of animals that are easy to produce in large numbers.
为了养活地球上70亿人，今天的大多数农民只种植或养殖易于大量生产的植物和动物。