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Oh! It’s not a good behaviour!
Because of dirty, you may stand up on the commode.
The design is helpful for you to solve this problem.
You can choose between seat or squat on the commode.
Nanchang University
Nanchang City, China
Nanchang University
Nanchang City, China
Dong Qican
Li Jiyun
Ren Guoqing
