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It's a product about the chewing gum box. When there is no garbage bin, it is a little trouble after we chewed the chewing gum since we cannot pack the rubber in the pocket, as a result , we have to wait the apperance of a garbage bin. Now the addit- ional papaers around the box will make us comfortable because we can use them to wrap the rubber.
Yiyun Xu Kai Bai Peinv Xu Xu Zhang