记忆方法
将“index”分解为“in”和“dex”，然后将“dex”想象为“deck”的一部分，就像一本书的索引（index）是一张“deck”卡片，它帮助你在书的海量信息中快速找到所需内容。这种方法通过将单词形象化，帮助你记忆它的含义。
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中文词源
index 指出，指数，标志，特征
来自拉丁语indicare,指出，说明，来自in-,进入，使，-dic,指出，说，词源同digit,indication.引申词义指数，标志，特征等。其复数形式为indices.
英语词源
- index
-
index: [16] Latin index originally meant ‘indicator’, and hence more specifically ‘forefinger’ – the finger used for pointing things out. It was based on the same stem, *dik- ‘point out’, as produced Latin dīcere ‘say’ (source of English diction, dictionary, etc). The metaphorically extended sense ‘list of contents’ had already developed in Latin before English took it over. Indicate is a parallel but apparently independent formation.
=> diction, dictionary, indicate - index (n.)
- late 14c., "the forefinger," from Latin index (genitive indicis) "forefinger, pointer, sign, list," literally "anything which points out," from indicare "point out" (see indication). Meaning "list of a book's contents" is first attested 1570s, from Latin phrases such as Index Nominum "Index of Names," index expurgatorius "specification of passages to be deleted from works otherwise permitted." Scientific sense (refractive index, etc.) is from 1829; economic sense (cost-of-living index, etc.) is from 1870, from the scientific usage, from sense "an indicator." The Church sense of "forbidden books" is from index librorum prohibitorum, first published 1564 by authority of Pius IV.
- index (v.)
- "compile an index," 1720, from index (n.). Related: Indexed; indexing.
权威例句
- 1. The FT 30 share index was up 16.4 points to 1,599.6.
- 《金融时报》30股指上涨16.4点，收于1,559.6点。
- 2. The index is the government's chief gauge of future economic activity.
- 这一指数是政府判断未来经济活动的主要依据。
- 3. He suffered a hairline fracture of the right index finger.
- 他右手食指骨裂。
- 4. Weeds are an index to the character of the soil.
- 杂草是反映土壤特征的一个指标。
- 5. The stock-market index fell by 80% before it began to recover.
- 股市指数下跌了80%后才开始反弹。
相关单词
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