Ying Haojian, a student from Shanghai Maritime University, celebrated her 19th birthday with other student volunteers at the China International Import Expo yesterday.

In total, 3,591 "little leaves," who are students from 40 local universities and colleges, are serving at the 5th CIIE.

CIIE volunteers are nicknamed "little leaves" after the clover-shaped National Exhibition and Convention Center.

Shot by Jiang Xiaowei. Edited by Yan Jingyang. Subtitles by Yang Yang.