Domestic commerce was impeded by the jealousies of the states, which erected tariff barriers against their neighbors.

各州的嫉妒心阻碍了国内贸易，这些州对邻国设置了关税壁垒。

Maryland and Virginia have as little occasion for those metals in their foreign, as in their domestic commerce.

马里兰州和弗吉尼亚州在国外和国内贸易中很少需要这些金属。