他开始学习政治学和中世纪史。

He began studying politics and medieval history.

《柯林斯英汉双解大词典》

他曾在耶鲁大学学习政治学和经济学。

He studied politics and economics at Yale.

《牛津词典》

学生还必须学习其他六门课程：物理、化学、生物、地理、政治和历史。

Students also have to learn six other subject physics, chemistry, biology, geography, politics and history.

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学生还必须学习其他六门课程：物理、化学、生物、地理、政治和历史。

Students also have to learn six other subject physics, chemistry, biology, geography, politics and history.

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