名词
中文翻译：指示原因
同义词：
['indication', 'indication of cause', 'indication of cause', 'indication of cause']
例句：
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1. The doctor gave me an indication that I should rest more.
医生给了我一个指示，让我多休息。
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2. The police officer indicated the suspect's location to the detective.
警察向侦探指示了嫌疑人的位置。
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3. The scientist made an indication of the chemical reaction by adding a drop of acid.
科学家通过加入一滴酸来指示化学反应。