The theory of educational vouchers has practiced in many countries since it has come into being.

教育券理论自产生以来，在国外许多国家得以实践。

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The national sales tax would raise money for universal health care vouchers and educational benefits for training doctors and nurses.

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Similarly, parents should be able to receive school tuition vouchers that will improve educational options for their children.

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Education secured its position as the major domestic political issue of the day, and policy makers found themselves engaged in major policy debates over topics ranging from curriculum content and computers in the classroom to vouchers and other new educational delivery systems.

UNESCO: II Part Analytic Section