精选优质文档-倾情为你奉上Unit 3smallpox n. 天花a highly contagious disease causing spots which leave marks on the skinimpasse n. 僵局；死胡同a position from which progress is impossible; deadlocktacticsn. 战术；策略a method or process of carrying out a scheme or achieving some enddairymaidn. 牛奶场女工a girl or woman who works in a dairydairyn. 1. 牛奶场；奶品场place where milk is kept and milk products are made2. 乳品店shop where milk, butter, etc. are soldcowpoxn. 牛痘a disease of cows,of which the virus wa
