名词
中文翻译：障碍物
同义词：
['obstacle', 'barrier']
例句：
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1.The ship was hit by a thwartship during the storm.
在暴风雨中，船被一个障碍物击中了。
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2.The engineer had to clear a thwartship to get through the narrow passage.
工程师不得不清除一个障碍物才能通过狭窄的通道。
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3.The team needed to overcome several thwartships to reach their destination.
团队需要克服几个障碍物才能到达目的地。