suburb

n.(pl.)城郊，郊区

substitute...for, substitution, substratum, substructure, subsume, subtenancy, subtenant, subtend, subterfuge, subterranean, subtitle, subtle, subtlety, subtly, subtopia, subtopic, subtotal, subtract, subtraction, subtropical, suburban, suburbanite, Suburbia, subvention, subversion, subversive, subversively, subversiveness, subvert, subway, subzero, succeed, succeed in, succeed in doing, succeed in sth., success, successful, successfully, succession, successive,