Scientistshavedevelopedanon-stickchewinggum.Thenewgumca...
问题详情：Scientistshavedevelopedanon-stickchewinggum.Thenewgumcan_1_____(remove)easilyfrompavements,shoesandclothes.It’stheresultofpolymer(聚合体)researchattheUniversityofBristolandcouldbelaunchedcomm...