名词中文翻译
中文翻译：索引
同义词：
['key', 'pointer', 'reference point']
例句：
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1. The index of the stock market isclosely watched by investors.
投资者密切关注股市的指数。
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2. The index of the economy has beenrising steadily since the beginning of the year.
自年初以来，经济指数一直在稳步上升。
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3. The index of the company'sperformance is closely monitored by analysts.
分析师密切关注公司的绩效指数。