tong ziyu
@tongziyu
China, Shaoxing
Joined May 2021
World Rank: #27346 (1 points)
Institution: Hailiang Senior High School
Activity over the last year
Effectiveness
- Problems solved
- 26
- Solutions submitted
- 73
China, Shaoxing
Joined May 2021
World Rank: #27346 (1 points)
Institution: Hailiang Senior High School