在宾夕法尼亚州巴克斯县监控失业统计数据的专家说，大约有2.8万人失业，其中很多人失业并不是由于他们自己的过错。
Experts who monitor unemployment statistics here in Bucks County, Pennsylvania, say about 28,000 people are unemployed, and many of them are jobless due to no fault of their own.
在欧洲人来之前，宾夕法尼亚州有几个印第安部落。
Several Indian tribes lived in Pennsylvania before Europeans came.
奥巴马星期五在宾夕法尼亚州匹兹堡的卡内基-梅隆大学发表讲话，并观看微型机器人水下探索和检查下水管道是否有泄漏和裂纹。
He gave the address at Carnegie Mellon University in Pittsburgh, Pennsylvania, where on Friday he watched a display of mini-robots that explore water and sewer pipes looking for leaks and cracks.
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