Since most clean-energy projects have a payback period of more than five years, the system thus fails to encourage green investment.
既然大多数清洁能源项目的效益回报期都在5年以上，那么“配额-贸易”制度并不能鼓励环保投资。
"This is the most clean kitchen in Bamiyan," she boasts in heavily accented English, as she directs her staff of Afghan assistants in fluent Dari.
“这里是巴米扬最清洁的厨房，”老板HiromiYasui用口音很重的英语夸耀说，她同时用流利的达里语差遣着她的阿富汗助手。
As the most clean and green source of energy, Wind energy naturally becomes the focus of national research.
风能作为最清洁、环保的能源，自然成为各国研究的重点。
As the most clean and green source of energy, Wind energy naturally becomes the focus of national research.
风能作为最清洁、环保的能源，自然成为各国研究的重点。
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