名词
中文翻译：前帆
同义词：
['front sail', 'foreboard']
例句：
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1. The sailors were busy adjusting the aft fan before setting sail.
船员们忙着调整前帆，准备启航。
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2. The boat was pulled up to the dock by the strong aft fan.
强劲的前帆将船拉上了码头。
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3. During the race, the athletes used their aft fans to propel themselves forward.
比赛中，运动员们利用前帆来推动自己前进。