“addn”造句，怎麼用addn造句

Topical prepns. (cosmetics and pharmaceuticals) contain emulsifying agents (anionic, cationic and/or nonionic surfactants) and other ingredients with addn. of org. semiconductors (Ge, Ge compds. or salts) to promote peripheral vasodilation (skin metab.)

尖叫的聲音代表著城市的風格，融入了時代的因素，是一種文化，也是廣告的原型。