名词中文翻译
中文翻译：速度标志
同义词：
['speed limit sign', 'speed limit indicator', 'speed limit signpost']
例句：
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1. The policeman slowed down to check the speed flag on the road.
警察减速检查路上的速度标志。
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2. The driver was fined for driving too fast and not having a speed flag.
司机因超速未挂速度标志而被罚款。
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3. The car's speed flag is broken, so we need to find a new one.
汽车的速度标志坏了，我们需要找一个新的。