Phan Thi Ngoc Han from Vietnam stands in front of the library of Beijing International Studies University in Beijing, capital of China, April 21, 2019. She came to China in 2018. At present she is taking preparatory courses in Beijing International Studies University. She became interested in China when she was a little girl. After learning Chinese for three years in Vietnam, she came to China for further study. She hopes to become a Chinese teacher in Vietnam after graduation. With the proposal of Belt and Road Initiative, an increasing number of foreigners come to China to meet China and introduce China to the world. They are the link of the trade and cultural exchange of China and foreign countries. (Xinhua/Ju Huanzong)