拱心石之州（宾夕法尼亚州的别称）
a Mid-Atlantic state; one of the original 13 colonies
同义词： Pennsylvania / PA
宾夕法尼亚州(Pennsylvania)：其别称为“拱心石之州”(Keystone State)。正如拱心石契合石拱门两边的石头，宾夕法尼亚州被看作是连接年青的美利坚合众国(American republic)的纽带。
...代初随着汽车逐渐成为美国、英国、欧洲、加勒比海地区和日本的主要交通工具， 宾夕法尼亚(Pennsylvania): 基石州(Keystone State) 好莱坞(Hollywood): 世界影都yccom
...（帝国州），加利福尼亚州叫Golden State（金州），内华达州叫Silver State（银州），宾夕法尼亚州叫Keystone State（拱顶石州），各个州都吹嘘自己的州是最厉害的。.
F088 基本原理(Keystone State) 栗 骟 F090 热烈期待(Hot Prospect) 栗 雌
The "Keystone State" ranks 48th in CO2 emissions from fossil fuel combustion, 49th for particulates in the air, and 49th for toxic exposure.
拱心石之州在化石燃料燃烧产生CO2上排名48，可吸入颗粒排名49，毒素暴露位居49。
Pennsylvania's nickname is the keystone State. Just as a keystone holds together a stone arch, Pennsylvania was seen as holding together the young American republic.
宾夕法尼亚州的别名是“拱心石之州”。就如拱心石支撑起石拱一样，人们认为宾夕法尼亚支撑起了年轻的美利坚共和国。
UGI Utilities, which serves Trimble and homes across the Keystone State, saw a record of more than 5, 500 customers converting to gas in the year that ended in September.
UGI这家为Trimble一家以及宾夕法尼亚州众多家庭提供燃气服务的公司统计，截止到今年九月份有超过5500位用户转向选择了燃气。
Pennsylvania's nickname is the Keystone State.
VOA : special.2009.08.23
Intense campaigning in the Keystone State continues amid questions about whether Michigan and Florida will hold primaries that count.
Santorum is basing his campaign's future on winning Pennsylvania when the Keystone State holds its primary on April 24.
Jay-Z and Alicia Keys may soon be in a Keystone State of Mind.