名词
中文翻译：障碍
同义词：
['barrier', 'obstruction']
例句：
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1.The construction of the new highway has created a significant blockgang in the area.
新高速公路的建设在该地区造成了重大的阻碍。
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2.The roadblock caused traffic to slow down significantly.
路障导致交通显著减慢。
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3.The company's blockgang is expected to be lifted soon.
该公司的阻碍预计将很快被解除。