i major in economics meaning in Chinese

我主修经济

I majored in economics / industrial design / history / sociology
我主修经济学/工业设计/历史学/社会学。
A : i majored in economics
我的专业是经济学。
I majored in economics in university . however , i have selected many courses in humanities such as anthropology , linguistics , geography etc . i have a variety of knowledge in different aspects
大学主修经济学，同时选修了许多人文学科，如人类学、语言学、人文地理等等。综合知识水平较高。