海伦在上大学里学的是经济学，与此同时她把哲学作为第二专业来学习。
Helen majors in economics at the university and at the same time she studies philosophy as her second major.
海伦在大学里学的是经济学，与此同时她把哲学作为第二专业来学习。
Helen majors in economics at the university at the same time she studies philosophy as her second major.
海伦在大学里学的是经济学，与此同时她把哲学作为第二专业来学习。
Helen majors in economics at the university at the same time she studies philosophy as her second major.
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