名词
中文翻译：速度线
同义词：
['speedway', 'speed rail', 'speedway track']
例句：
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1. The racers lined up at the starting line.
赛车手们在起跑线上排队。
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2. The speedline was closed for maintenance.
速度带因维护而关闭。
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3. The speedline is designed to reduce traffic congestion.
速度带旨在减少交通拥堵。