名词
中文翻译：堵塞信号
同义词：
['block signal', 'jammed signal例句：1. The jammed car was difficult to start.（这辆堵车的汽车很难启动。）']
例句：
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1. The jammed car was difficult to start.
这辆堵车的汽车很难启动。
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2.The jammed traffic caused a long delay.
交通堵塞导致长时间的延误。
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3. The jammed road was a major cause of accidents.
拥堵的道路是事故的主要原因。