在这十年中，新的娱乐、商业、研究和通讯形式在美国变得司空见惯。
During this decade new forms of entertainment, commerce, research, and communication became commonplace in the U.S.
有许多工作机会，许多大图书馆供研究用，几家不同的博物馆供参观，还有许多电影院、剧院和中心供娱乐。
There are plenty of opportunities for work, many big libraries for studies, several differrent museums for visit, and numerous cinemas, theaters and centers for entertainment.
如今，它们仍然被用来进行历史研究，同时也是文学和娱乐的灵感来源。
They are still used today for historical research, as well as inspiration for literature and entertainment.
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