名词
中文翻译：军舰
同义词：
['steamboat', 'barge例句：1. The gunboat patrolled the river to prevent smuggling.（军舰巡逻河面以防止走私。）']
例句：
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1. The gunboat patrolled the river to prevent smuggling.
军舰巡逻河面以防止走私。
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2. The barge was carrying passengers across the river.
渡船正在运送乘客过河。
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3. The steamboat was a popular mode of transportation in the old days.
蒸汽船是旧时代一种流行的交通工具。