我的专业是经济学。

I majored in Economics.

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我的专业是会计，但我的爱好并非会计，而是哲学或者经济学。

My major is accounting, but my hobby is not accounting, but the philosophy or economics.

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我的专业是旅游，并且我也学了有关旅游经济学、旅游市场、旅游文化、旅游礼仪，还有导游方法、技巧等方面的知识。

I majored in tour. I also studied economics of tourism, tourist market, tourist cultures, tourist etiquette science, guiding methods and techniques and etc.

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