洋瑞 叶
@earring
China, 成都
Joined Aug 2018
World Rank: #14468 (2.3 points)
Institution: 七中
Activity over the last year
Effectiveness
- Problems solved
- 27
- Solutions submitted
- 124
China, 成都
Joined Aug 2018
World Rank: #14468 (2.3 points)
Institution: 七中