Because of that large amounts of particular types of pesticides and fertilizers and the like have to be used to defend against these outside threats; and those bring their own series of environmental consequences, so we'll go into that in some detail.

由于上述原因,人们大剂量使用某些,杀虫剂和化肥,这样做是为了抵御外来威胁,这带来了一系列的环境影响,我们来详细看看是怎么回事

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

and their produce is fresh and organic so you're not getting pesticides.

食物很新鲜，富含有机物，不会吃到农药。

有益健康的美食店 - SpeakingMax英语口语达人

so we don't use like pesticides or herbicides or anything.

所以我们不用任何像杀虫剂或除草剂类的东西。

想要个农场 - SpeakingMax英语口语达人