考研英语

Until now, many sellers that have a physical presence in only a single state or a few states have been able to avoid charging sales taxes when they ship to addresses outside those states.(2019年英语一，text4)

【重点词汇】state 州，国家，状态，陈述;avoid 避免(avoid doing 避免做某事);address 地址，解决;be able to do 能够做某事。

【结构分析】Until now是时间状语，that have a physical presence in only a single state or a few states 是一个限制性定语从句，修饰先行词 many sellers，整个句子的主干是many sellers have been able to do...后面是以when开头引导的时间状语从句，即when they ship to addresses outside those states.短语 be able to do 表示能做某事，avoid doing表示避免做某事。

【参考译文】到目前为止，许多只在一个州或几个州设有实体店的卖家，在向这些州以外的地址发货时，都能避免征收销售税。