In the 19 th century waterpower was widely utilized to generate electricity.在19世纪人们大规模使用水力来发电.The empty building can be utilized for city storage.可以利用那栋空建筑物作城市的仓库.They utilized water for producing electric power.他们利用水力发电...
许多人竟然不知道地球变暖的事实，实在令人担忧。Many people are worryingly ignorant of the facts about global warming.可能正导致地球变暖的那些气体，其主要影响将在多年后显现。The gases that may be warming the planet will have their main effect many years hence.这篇文章的开头总结了对全球...