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1.The carrier transport phenomenon is a complex system that involves the movement of goods and services across different regions.
运输现象是一个复杂的系统，涉及货物和服务在不同地区之间的移动。
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2. The transportation industry plays a crucial role in promoting economic growth and development.
交通运输业在促进经济增长和发展方面起着至关重要的作用。
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3. The carrier transport phenomenon has significant impacts on the environment, including air pollution and noise pollution.
运输现象对环境有重大影响，包括空气污染和噪音污染。