名词
中文翻译：速度标记
同义词：
['speedometer', "speed indicator例句：1. The car's speed mark is at the top of the speedometer.（汽车的速度表在速度计的顶部。）2. The driver must keep a safe speed mark to avoid accidents.（驾驶员必须保持一个安全的行驶速度以避免事故。）"]
例句：
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1. The car's speed mark is at the top of the speedometer.
汽车的速度表在速度计的顶部。
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2. The driver must keep a safe speed mark to avoid accidents.
驾驶员必须保持一个安全的行驶速度以避免事故。
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3.The racers followed the same speed mark as they crossed the finish line.
赛跑者在越过终点线时，都遵循相同的速度标记。