逗号不用去掉...你这句话是不是还是病句?
Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-intensive industries, have reduced oil consumption.
从a shift到industries是插入语,修饰energy conservation
逗号不用去掉...你这句话是不是还是病句?
Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-intensive industries, have reduced oil consumption.
从a shift到industries是插入语,修饰energy conservation