Zhao Zicheng and Zhao Zihui, twin brothers from Nantong, Jiangsu province, were both admitted by Shanghai Jiao Tong University this year.

Both of the twins developed an interest in math and science after entering school.

"Sometimes, we would fight about who's solution to problems are better," said the twins, "Both of us learned a lot during those interactions."

They participated in academic competitions together and even obtained the titles of merit students at the same time.

Their days of studying and working hard together are filled with joy and fulfillment.