The research was conducted at disney research in pittsburgh .

这项研究是由匹兹堡的迪斯尼研究中心发起的。

Pittsburgh has changed itself physically too .

匹兹堡还改变了其城市外貌。

Pittsburgh is often pointed to as a model for other shrinking cities .

匹兹堡经常被指是其他缩水城市的典范。

His workers in pittsburgh felt the full force of his pitiless darwinism .

匹兹堡的工人充分地体会到卡耐基冷酷无情的达尔文主义。

But being here in pittsburgh , I 'm hopeful about the future .

但当我站在匹兹堡，我对未来充满了希望。