名词
中文翻译：主要入口港
同义词：
['primary port', 'primary entrance port例句：1. The port is the main entry point for ships coming from the east.（该港口是来自东方的船只的主要入口点。）2. The port is a hub of trade and commerce.（该港口是贸易和商业的中心。）3. The port is undergoing significant upgrades to improve its efficiency.（该港口正在进行重大升级，以提高其效率。）']
例句：
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1. The port is the main entry point for ships coming from the east.
该港口是来自东方的船只的主要入口点。
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2. The port is a hub of trade and commerce.
该港口是贸易和商业的中心。
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3. The port is undergoing significant upgrades to improve its efficiency.
该港口正在进行重大升级，以提高其效率。