经过生物工程改造的棉花种植场可以生产自己的抗棉铃虫杀虫剂，而棉铃虫是造成农作物歉收的主要原因，直到今年，棉铃虫的危害都很小。

Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.

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这儿盛产棕榈油，我们驶过最大的种植场延伸达40英里，令人印象深刻。

There is oil here - palm oil. The largest plantation we drove through lasts for an impressive 40 miles.

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因为这里没有像佐治亚中部的黄土地或海滨种植场滋润的黑土地那样的长长的笔直的犁沟。

For here were no long, straight furrows, such as could be seen in the yellow clay fields of the flat middle Georgia country or in the lush black earth of the coastal plantations.

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