求翻译：在我看来，面对私家车便利与污染的矛盾，科学引导私家车的发展是重中之重。一是相关政策的调控，如推行清洁能源；二是改进技术手段，如改进发动机结构，降低尾气污染；三是转变公民意识，如倡导绿色出行，做到低碳生活。是什么意思？

In my opinion, in the face of the contradictions of the private car convenience and pollution science to guide the development of the private car is the most important. First, the regulation of the related policies, such as the implementation of clean energy; is to improve the technical means, such