名词
中文翻译：Unknown
同义词：
['border', 'boundary', "limit line例句：1. The zone line is a crucial factor in determining the boundaries of the region.（该区域线是确定该地区边界的关键因素。）2. The border between our two countries is marked by a distinct zone line.（我们两国之间的边界由一条明显的地带线标识。）3. The city's zone lines were redrawn to improve traffic flow.（为了改善交通流，该市重新划定了区域线。）"]
例句：
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1. The zone line is a crucial factor in determining the boundaries of the region.
该区域线是确定该地区边界的关键因素。
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2. The border between our two countries is marked by a distinct zone line.
我们两国之间的边界由一条明显的地带线标识。
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3. The city's zone lines were redrawn to improve traffic flow.
为了改善交通流，该市重新划定了区域线。