2013年3月托福考试备考：托福阅读精选词汇（九）
托福阅读词汇选集（9） preservative—— Something used to preserve, especially a chemical added to foods to inhibit spoilage 防腐剂=maintain To keep in an existing state; preserve or retain 保持 preside over—— 管理,主管=manage prestige—— A person's high standing amon...