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the tooth cup with holes can make the
toothbrush regular Perpendicularly,which will avoid the toothbrush touching other toothbrushes.The cup will keep personal oral health.In our real life ,we often
meet the problem ,especially in the collective bedroom ,the
heads of the toothbrushes always touching each others.Then this kind of cup solve this problem skillfully.
Nanjing Forestry University
Nanjing, China
Nanjing Forestry University
Nanjing, China
Xiaoman.Fu Yelan,Shi
Peifan.Li Zekun.song