synthetic

a.合成的，人工的；综合的 n.人工制品

syncope, syndicalism, syndicalist, syndicate, syndication, syndrome, synergic, synod, synonym, synonymous, synopsis, synoptic, syntactic, syntactical, syntactically, syntax, synthesis, synthesize, synthesize, synthesise, synthesizer, synthesiser, synthetically, syphilis, syphilitic, syringa, syringe, syrup, syrupy, system, systematic, systematic(al), systematically, systematization, systematisation, systematize, systematize, systematise, systemic, systemically, systems analysis, t, t (US tn), T and AVR,