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转轮牙膏 / Runner toothpaste


Most children hate brushing their teenth.And many
parents are caught in battle of wills their child over
brushing their teenth.RUNNER TOOTHPASTE
differs from normal toothbrush by the fact that it will
encourage children,who hate brushing their teeth,to
choose their own fond shapes and start taking
interest in tooth brushing.


Ningbo Institute of Technology, Zhejiang University

Ningbo Institute of Technology, Zhejiang University
Ningbo, China