index number
英
['ɪndeks 'nʌmbə]
美
['ɪnˌdeks 'nʌmbər]
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Noun:
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a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
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用作名词 (n.)
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The index will run into some flak.
这一指数也会成为某种广告。
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The exponent is a fraction or negative number.
指数是一个分数或负数。
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