在20世纪90年代初期，万维网的开发很大程度上是出于商业目的。

In the early 1990s, the World Wide Web was developed, in large part, for commercial purposes.

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正如铁路网和电力网分别驱动19世纪和20世纪的经济转型一样，今后几十年高速宽带将改变经济方式。

Just as railway networks drove an economic transformation in the 19th century, and electricity networks in the 20th century, so high-speed broadband will transform economies in decades to come.

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例如，在21世纪初，有四分之一的美国人使用万维网。

For example, at the turn of the 21st century, a quarter of the U.S. population used the World Wide Web.

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