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Growing crops in naturally forested areas requires cutting trees, and farmers began to clear forests for this purpose in Europe and China by 8,000 years ago, initially with axes made of stone and later from bronze and then iron. |
中文意思: 在自然森林地区种植作物必须砍树;欧洲与中国的农人约8000年前开始清除森林,最初用的是石斧,接著是铜器,再来是铁器。 |
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