Scientists are looking for new sources of fuel to replace our dependence on nonrenewable resources such as oil.科学家们正在寻找新能源以替代我们对石油等不可再生资源的依赖。The government must continue this drive to find new, cleaner forms of energy.政府必须继续进行这场寻找更清洁的新能源的运动。There is a great deal of interest in harnessing wind and waves as new sources of power.人们对开发利用风和波浪这些新能源非常感兴趣。