根据美国能源部门的一份最新报告，清洁能源中最重要的是镝。
According to a new United States energy Department report, the most important of these for clean energy is dysprosium.
该项目将利用私营部门资源和专长，加快清洁能源技术的应用。
The ECP will leverage privatesector resources and expertise to accelerate the deployment of cleanenergy technology.
国家的警察部门更加专业化，他们甚至会对垃圾管制而执行法律，以使卢旺达成为非洲最清洁的国家；塑料袋在机场也全部没收。
The police are professional, even enforcing laws on litter to make Rwanda the cleanest country in Africa; plastic bags are confiscated at the airport.
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