study in XX university and major in XX

be studying in the Major of XX at XX School (of XX University)或：be studying at/in XX University, majored in XX

At present I am studying at Peking University majoring in international politics. 我目前就读于北大，主修国际政治学。I graduated from Michigan university, my speciality is engineering. 我毕业于密歇根大学，我的专业是工程学。请及时采纳，不懂继续问( 天天在线 ）(*^__^*) 祝学习进步! 谢谢！