名词
中文翻译：减速线
同义词：
['deceleration line', 'retarding line', 'decelerating line']
例句：
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1. The engineer designed the retarding line to slow down the vehicle's speed.
工程师设计了减速线，以减缓车辆的速度。
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2. The construction of the retarding line was crucial for the project's success.
减速线的建造对于项目的成功至关重要。
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3. The retarding line is used to control the flow of traffic around the intersection.
减速线用于控制交叉口的交通流量。