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Clean The Bottom / toothbrush

Clean The Bottom
Clean The Bottom

We brush our teeth every day,but we scarcely ever clean the tooth glass.In China we still don't have Dedicated Drinking Water System.There is still something dirty in the warter,like algae or even ova.These things will make the tooth glass so dirty if we don't clean it for a long time.

University

Chongqing University

Chongqing University
Chongqing, China

Design

Jinglei Zhou

Jinglei Zhou
Chongqing, China