The "political mirror" may have many explanations. Among them, the "mirror of the government" can refer to a form of supervision over the government itself, paying attention to social hot issues and people's comments through public opinion supervision, and taking this form as one of the basis for the government to formulate policies and administrative management. In addition, the "mirror of government" may also refer to the tools or methods used by government agencies or policy makers to make decisions and formulate policies, which may include many factors such as economy, society and culture.

"Pioneer of reform" is a more specific word, which is usually used to describe those people or organizations that play a vanguard and exemplary role in the reform process. These people or organizations usually have advanced ideas and thoughts in reform, can lead and promote the reform process, dare to try new methods and ways, and can work hand in hand with others to jointly promote the realization of reform goals.

However, the combination of "government mirror" and "reform pioneer" has no clear meaning in the information currently available. You may ask for specific concepts or opinions in a specific environment, or you may need to discuss specific policies or actions in more depth. If you can provide more information or specific background, I may be able to answer your question better.