Now listen to part of lecture on the topic you just read about.现在来听一段有关你刚刚读到的话题的演讲 。The reading is correct in pointing out the problems associated with oil-powered cars.阅读文章在指出与燃油汽车有关的问题时是对的。Yes, oil is a finite resource, and yes, burning oil harms the environment.是的，石油是有限的资源，而且，燃烧石油有害环境。However, the reading is way too optimistic in its assessment of hydrogen-based fuel-cell engines.然而，阅读部分对于氢动力燃料电池发动机的评价却过于乐观。Hydrogen is not the solution to these problems.氢不是解决这些问题的方法 。First, hydrogen i
