"This could be the breakthrough we've been looking for on clean cars," said David Friedman, research director of the clean vehicle program at the Union of Concerned Scientists.
“这可能就是我们清洁汽车研究的突破了，”忧思科学家联盟清洁汽车项目研究主任戴维·弗里德曼说。
"This could be the breakthrough we've been looking for on clean cars," said David Friedman, research director of the clean vehicle program at the Union of Concerned Scientists.
“这可能就是我们清洁汽车研究的突破了，”忧思科学家联盟清洁汽车项目研究主任戴维·弗里德曼说。
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