名词
中文翻译：次级站
同义词：
['tertiary station', 'substation']
例句：
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1.The new secondary station is expected to open next month.
预计下个月将开放新的二级站。
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2.The train will stop at the secondary station before reaching the main line.
火车将在到达主线路之前在二级站停靠。
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3.The secondary station provides a convenient location for travelers.
二级站为旅客提供了便利的地点。