名词
中文翻译：阻塞物
同义词：
['blockage', 'obstruction']
例句：
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1.The car was stuck in the traffic jam for hours.
汽车在交通堵塞中被困了几个小时。
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2.The engineer used a chock plug to stabilize the slope.
工程师使用填塞物来稳定斜坡。
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3. The construction workers had to use a chock plug to block the hole.
建筑工人不得不使用填塞物来堵住那个洞。