With the development of the economy and the acceleration of the urbanization, the urban transportation and environment problems have become increasingly serious.

随着我国城市化进程加快，城市交通及环境问题日益严重。

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That report says an initial investigation by the U.S. Transportation Department found essentially the same thing that investigators uncovered when they looked into sudden-acceleration complaints about Audis in the 1980s: driver error.

FORBES: Report: Toyota Gas Pedals Might Not Be Culprit