That's part of public finance--is learning how to modify the tax system so that it works pretty well.
公共财政学的一个课题就是,研究如何改进税收制度,使其更有效。
Public finance relates to the tax and welfare system that we have.
公共财政学涉及,税收和我们的福利体系。
Let me say something about public finance here.
来说一说公共财政学。
This is not a course in public finance.
这门课不是公共财政学。
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