Over time, the costs of processing go down because as organizations learn how to do things better, they become more efficient.
随着时间的推移，处理成本会降低，因为随着组织学会如何把事情做得更好，它们会变得更有效率。
2
Since all the processing plants are in urban areas, removing the tariff would seriously hamper the government's effort to reduce urban unemployment over the next five years.
由于所有的加工厂都在城市地区，取消关税将严重阻碍政府在未来五年内降低城市失业率的努力。
3
That includes raising and harvesting all the plants, animals, and animal products we eat, as well as processing, packaging, and shipping food to markets all over the world.