名词
中文翻译：指示器
同义词：
['marker', 'indicator', "signifier例句：1. The traffic light is an indicator of the intersection's safety.（交通灯是交叉路口安全的指示灯。）"]
例句：
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1. The traffic light is an indicator of the intersection's safety.
交通灯是交叉路口安全的指示灯。
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2.The new policy is a clear indicator of the government's intentions.
新政策是政府意图的明确指示。
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3. The temperature change is an indicator of the weather's shift.
温度变化是天气变化的指标。