名词
中文翻译：障碍物
同义词：
['obstacle', 'barrier', 'impediment']
例句：
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1. The road was blocked by a large truck.
一辆大卡车堵住了路。
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2. He blocked the door with his body to keep out the cold.
他用身体挡住门，以抵御寒冷。
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3. The blockade has been lifted, allowing for free movement of goods.
封锁已被解除，货物可以自由流动。