名词
中文翻译：指示器
同义词：
['marker', 'index', 'signifier']
例句：
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1.The traffic police use traffic cones as indicators to direct traffic flow.
交通警察使用交通锥作为指示物来指导交通流。
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2. The new product is a significant indicator of the company's future success.
新产品是公司未来成功的一个重要指标。
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3.The temperature change was an accurate indicator of the approaching storm.
温度变化准确地预示了即将到来的风暴。