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本文概括介绍了美国各种运输方式的现状及其特点,概述了美国新政策对各种运输方式的影响,指出了美国运输业存在的最主要问题。
This article gives an overview of the status quo and characteristics of various modes of transport in the United States. It outlines the impact of the new U.S. policy on various modes of transport and points out the most important problems in the transport industry in the United States.