(across) the country = all over the country,
across穿过,遍及,介词.
dozens of toxic sites 主语(across) the country 介词短语定语have been cleaned up谓语
(across) the country = all over the country,
across穿过,遍及,介词.
dozens of toxic sites 主语(across) the country 介词短语定语have been cleaned up谓语