Guma, gum, gum-forming hydrocarbons, gummy shark swim-bladder, Gumannomyces graminis virus, Gums are red and swollen., gum rosin with positive ion, Gum adhered to her fingers., gummed water-resistant tape, Gummatous periostitis of yaws, Gum can also contain medicine., gumma of interventricular septum 返回 Gumtow