名词
中文翻译：港口入口
同义词：
['port entrance', 'harbor entrance']
例句：
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1.The ship approached the harbour entrance with caution.
这艘船小心翼翼地靠近港口入口。
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2. The captain directed the crew to inspect the harbour entrance for any signs of danger.
船长指示船员检查港口入口，以防危险的迹象。
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3. The port authorities were notified of the incoming cargo and instructed to inspect the harbour entrance.
港口当局接到了即将到来的货物的通知，并被指示检查港口入口。