为了耕种庄稼，莱特先生需要使用化肥、燃料和杀虫剂——这些全部来自石油。

To grow his crops, Mr Wright needs fertiliser, fuel and pesticides—all of which are derived from oil.

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“我刚刚喝了一点点，但农药象是把嘴和喉咙烧着了，”赵说。 这个普通农妇除了要耕种庄稼、照顾丈夫和两个男孩（一个5岁，另一个10岁）以外，还得维持一个7口之家的日常生活。

"I just drank a little bit, but it burned my throat and my mouth, " said Zhao, who tends the crops, cares for her two boys, now 5 and 10, and runs a household of seven.

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而研究发现的第五种可能提高高梁产量的方法是减少庄稼的耕种。

And fifth way that the study found may improve sorghum production is to reduce crop tillage.

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