名词中文翻译
中文翻译：索引
同义词：
['key', 'pointer', 'reference']
例句：
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1.The index of the stock market is closelywatched 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 been risingsteadily 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's performancehas fallen significantly in the past quarter.
该公司过去一季度的业绩指数显著下降。