... 鲁滨逊.克鲁索的穿着 Robinson Crusoe’s Dress 有毒的虫子 The Venomous Worm 食米鸟 The Bobolink ...
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然而早在约4500年以前，也有农民使用有毒的添加剂，苏美尔人便将硫磺撒在作物表面以杀死虫子。
But some farmers used toxic additives as early as 4,500 years ago, when Sumerians dusted crops with sulphur to kill insects.
然而早在约4500年以前，也有农民使用有毒的添加剂，苏美尔人便将硫磺撒在作物表面以杀死虫子。
But some farmers used toxic additives as early as 4, 500 years ago, when Sumerians dusted crops with sulphur to kill insects.
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