GRE词汇解析：contaminated

　　contaminated: 受污染的; polluted

　　contaminated <>inviolate; pristine; aseptic

　　purge <>contaminate, adulterate

　　hedge : loss:: quarantine : contaminate

　　inviolate: 未亵渎的, 无污点的, 未受侵犯的

　　tainted: 感染的, 污染的

　　untainted: 无污点的

　　aseptic: 洁净的,无菌的,防腐剂,preventing infection; having a cleansing effect