名词中文翻译
中文翻译：主线
同义词：
['mainline', "trunk route例句：1. The train's trunk line passes through the city center.（火车的主干线穿过市中心。）2. The company's trunk line connects all its branches.（公司的主要线路连接了所有分支机构。）"]
例句：
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1. The train's trunk line passes through the city center.
火车的主干线穿过市中心。
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2. The company's trunk line connects all its branches.
公司的主要线路连接了所有分支机构。
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3. The trunk line is essential for the transportation of goods.
主干线对于货物运输至关重要。