And cotton cultivation still requires tons of pesticides and fertilizers, both of which are derived, in part, from petroleum.
而且棉花种植过程中需要数以吨计的杀虫剂和肥料，而它们至少一部分是石油衍生品。
2
Yet most aspirin manufacturing begins with benzene, a hydrocarbon that is typically derived from petroleum products.
但大部分厂家开始使用苯——一种由石油提炼的碳化氢来生产阿司匹林。
3
It can also be turned into jet fuel, and it can be used as a raw material for the manufacture of plastics and many other chemicals normally derived from petroleum.