In the past the country of Siduria has relied heavily on imported oil. Siduria recently implemented a program to convert heating systems from oil to natural gas. Siduria already produces more natural gas each year than it burns, and oil production in Sidurian oil fields is increasing at a steady pace. If these trends in fuel production and usage continue, therefore, Sidurian reliance on foreign sources for fuel should decline soon.
笨笨的问,这里的oil和fuel是一回事吗?哪个NN给翻译一下撒?我怎么看成它靠进口oil,怎么本国又生产oil,那还要进口干吗?  |