CancersCellsinourbodiesarealwaysdividing,asnewcellsrepl...
問題詳情：CancersCellsinourbodiesarealwaysdividing,asnewcellsreplaceoldones.36Cancercellsdividerapidly,andformgrowthscalledtumours(腫瘤）.Theycanspreadtotakeoverawholeorganandstopitworkingproperly.Ifcells...