名词
中文翻译：Unknown
同义词：
['underside', 'underlay', 'undertake', 'underway']
例句：
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1. The ship is docked at the underport of the harbor.
这艘船停靠在港口的码头下。
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2. The workers were undertaking repairs to the underport of the bridge.
工人们正在对桥梁的码头下进行维修。
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3. The underport of the port was a busy area for cargo loading and unloading.
港口的码头下是货物装卸繁忙的区域。