名词
中文翻译：高速公路
同义词：
['highway', 'expressway']
例句：
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1. The driver carefully followed the signs on the highway to avoid accidents.
司机小心地跟随高速公路上的标识以避免事故。
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2. The expressway is a popular mode of transportation for people traveling between cities.
高速公路是人们旅行于城市之间的一种流行交通方式。
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3. The construction of the expressway has greatly improved the efficiency of transportation in the area.
高速公路的建设大大提高了该地区运输效率。