专家认为，太阳和风能源是最富有的清洁和可再生能源。
Experts say that sun and wind are the richest sources of clean, renewable energy.
研究，试验和最终多年，成功的应用，带来了经济实惠，清洁和可再生能源，我们的指尖非常现实的可能性了。
Many years of research, testing and ultimately, successful application has brought about the very real possibility of affordable, clean and renewable energy to our fingertips now.
风是一种清洁的可再生能源，不产生空气和水污染。
Wind is a clean source of renewable energy that produces no air or water pollution.
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