That means farmers do not need to spray a whole field. Instead there is a little bit of insecticide inside each plant -- including the pollen and nectar that the bees want.这意味着,农民不必在整块田地里喷洒农药了。而每棵植株里只有少量杀虫剂,蜜蜂需要的花粉和花蜜里也有。
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