名词
中文翻译：双向干线
同义词：
['two-way trunk line', 'dual trunk line']
例句：
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1.The company plans to upgrade its both-way trunk line to improve service efficiency.
该公司计划升级其双向干线以提升服务效率。
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2. The construction of the both-way trunk line has been a long-standing goal for the city.
建设双向干线一直是该市长期的目标。
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3. The new both-way trunk line will connect two major cities, greatly improving transportation between them.
新的双向干线将连接两个主要城市，极大地改善它们之间的交通。