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IELTS BNC: 1793 COCA: 2621
index
ɪndeks ˈɪnˌdɛks
Word forms: plural indices, plural , 3rd person singular present tense indexes, present participle indexing, past tense , past participle indexed
The usual plural is indexes, but the form indices can be used for meaning 1. 复数通常为 indexes,但 indices 可以作为义项1的复数形式。
1 N-COUNT 指数 An index is a system by which changes in the value of something and the rate at which it changes can be recorded, measured, or interpreted. 指数

  • ...the UK retail price index.

    英国零售价格指数

  • ...economic indices.

    经济指数

2 N-COUNT 索引 An index is an alphabetical list that is printed at the back of a book and tells you on which pages important topics are referred to. 索引

  • Curiously, the word 'gay' does not occur in the index.

    奇怪的是,gay这个词没有出现在索引当中。

  • There's even a special subject index.

    甚至有一个专项索引。

SYN list, listing, key, guide
3 VERB 为(书等)编索引 If you index a book or a collection of information, you make an alphabetical list of the items in it. 为(书等)编索引

  • This vast archive has been indexed and made accessible to researchers. [be VERB-ed]

    这个存量巨大的档案室的所有文件都已编了索引,可供研究人员使用。

  • Painters and sculptors are indexed separately. [VERB-ed]

    画家和雕刻家被分开，分别做了索引。

  • She's indexed the book by author, by age, and by illustrator. [VERB noun]

    她根据作者、年龄和插图画家分别为该书编了索引。

4 VERB [usually passive] 使(与…)相应挂钩;使指数化 If a quantity or value is indexed to another, a system is arranged so that it increases or decreases whenever the other one increases or decreases. 使(与…)相应挂钩;使指数化

  • Minimum pensions and wages are to be indexed to inflation. [be VERB-ed + to]

    最低养老金和最低工资要与通货膨胀挂钩。

5 N-COUNT [usu N of/to n] 标志;迹象;指标 If one thing is an index of another, it indicates what the other thing will be like. 标志;迹象;指标 [formal]

  • Weeds are an index to the character of the soil.

    杂草是反映土壤特征的一个指标。

SYN indication, guide, sign, mark
6 N-COUNT (数学中的)指数 In mathematics, indices are the little numbers that show how many times you must multiply a number by itself. In the equation 32 = 9, the number 2 is an index. (数学中的)指数 [technical]
7 See also: card index 
Trends of index
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