名词
中文翻译：指示光
同义词：
['indicator light', 'indicator lamp']
例句：
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1.The new car has a bright indicating light that makes it easy to see at night.
这款新车有一个明亮的指示灯，在夜间很容易看清。
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2.The doctor used an indicating light to examine the patient's eyes.
医生用一个指示灯来检查病人的眼睛。
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3.The police officer shined his flashlight to indicate the direction of the suspect.
警察用他的手电筒来指示嫌疑人的方向。