名词
中文翻译：主线收费站
同义词：
['mainline', 'main road toll station例句：1. The mainline toll station is located at the entrance of the highway.（主线收费站位于高速公路入口处。）']
例句：
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1. The mainline toll station is located at the entrance of the highway.
主线收费站位于高速公路入口处。
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2.Mainline toll stations are essential for ensuring smooth traffic flow.
主线收费站对于确保交通流畅至关重要。
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3. The mainline toll station has been upgraded to provide better service.
主线收费站已升级，以提供更好的服务。