名词
中文翻译：事件标记
同义词：
['event sign', 'event indicator']
例句：
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1. The event marker on the roadside is a crucial part of the traffic control system.
路边的这个事件标记是交通控制系统中至关重要的一部分。
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2. The event marker helps to identify and record important events in the area.
这个事件标记有助于识别和记录该地区的重要事件。
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3. The event marker was designed to prevent accidents caused by distracted driving.
这个事件标记被设计来防止因分心驾驶导致的事故。