Thank you for revising

P1:
It is interesting that in China the most bustling commercial area of a city is always at the centre of the city, while in a Western city it is usually at one end of the city. That's why in Chinese we say "shizhongxin"(the center of the city) while in English it is called downtown.

P2:

In my second year, I met a professor in our history department at my university. I attended his classes and found that history was interesting. He also encouraged me to follow my own passion. I kept attending his class and did some research paper. Finally, when I graduated from the economics department I applied to be his graduate student. My specialty is Economics history in Qing Dynasty. Then, I started to do some research when I was in the Economics department in this field, using economical approaches. However, I found historic methods were more convincing. I preferred reading primary materials and going back to the institution to talk with people to find the answer rather than manipulating data. That was another reason I switched to history department.

Thank you for revising

P1:
It is interesting that in China the most bustling commercial area of a city is always at the centre of the city, while in a Western city it is usually at one end of the city. That's why in Chinese we say "shizhongxin(the center of the city)"while in English it is called downtown.

P2:

At During my second year I met a professor in the history department in my university. I attended his classes and found that history was interesting. He also encouraged me to follow my own passion. I kept attending his class and did some research paper. Finally when I graduated from the economics department I applied to be his graduate student. My specialty is economics history in the Qing Dynasty. Actually I started to do some research in this area when I was in the economics department in this field, using economical approaches. However I found that the historic methods was were more convincing. I preferred reading primary materials, going back to the institution and people to find the answer, instead of manipulating data. That was another reason I switched to the history department.