VOA慢速英语2012.07.15
[audio]http://sound.yywz123.com/tingbbs/voa/voa20120715.mp3[/audio]In the early days of human history, people survived by hunting wild animals, or gathering wild grains and plants for food. Then, some people learned to grow crops and raise animals for food. They were the first farmers.在人类历史早期，人们依靠捕食野生动物，或者采食谷物或植物来为生。后来，一些人学会种植作物，圈养动物来获得食物。他们就是早期的农民。
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