indexes
indexes — 名詞
1. the section at the end of a reference book where topics are listed from A to Z b
索引
書後按字母排序的檢索列表
the section at the end of a reference book where topics are listed from A to Z beside the pages where you can find them
Sari checked the index at the back of the textbook for 'photosynthesis'.
Sari 在課本後面的索引裡查了「photosynthesis」。
look up a topic in the index
The index listed every character name and the pages where they appeared.
索引列出了每個角色的名字以及他們出現的頁碼。
Without a proper index, finding a single recipe in the cookbook took ages.
沒有完善的索引，要在食譜裡找到一道菜得花上很久。
a proper index / without an index
Chidi always turns to the index first when he opens a reference book.
Chidi 翻開參考書時總是先翻到索引那一部分。
Erik spent two days building a detailed index for the history textbook.
Erik 花了兩天為那本歷史課本編了一份詳細的索引。
build an index / a detailed index
- alphabetical index
- comprehensive index
- look something up in the index
- check the index
- build an index
- a detailed index
用法筆記
Distinguish from a table of contents, which lists chapters by order of appearance — an index lists topics alphabetically with page numbers.
常見錯誤
2. an ordered set of entries kept in a digital database or on cards, sorted alphabe
資料索引
電腦或卡片上的有序資訊集
an ordered set of entries kept in a digital database or on cards, sorted alphabetically so each item can be found quickly
The library's card index held records of every book acquired since 1920.
圖書館的卡片資料索引記錄了自 1920 年以來購入的每一本書。
card index — a physical filing system
Hana typed a name into the database index and found the file instantly.
Hana 在資料庫索引中鍵入一個名字，立刻找到了檔案。
database index — a digital lookup structure
Old medical records were kept on index cards in a wooden cabinet.
舊的病歷保存在木櫃裡的索引卡上。
index cards — individual cards in a card index
Farid pulled out the card index drawer and searched by hand through hundreds of entries.
Farid 拉出卡片索引抽屜，徒手翻找了數百條記錄。
Vinícius updated the customer index on his computer before closing the office.
Vinícius 在下班前更新了電腦上的顧客索引。
update an index
- card index
- database index
- index cards
- search the index
- update an index
用法筆記
Most often encountered today in computing (database index, search engine index). The physical card-index system is now rare.
3. a number, often published regularly, that tracks how a group of related values c
指數
比較數值變化的數字系統
a number, often published regularly, that tracks how a group of related values changes over time compared to a starting point — for example, the consumer price index that measures living costs
Tyler noticed the consumer price index had climbed and sighed at the rising cost of his weekly groceries.
Tyler 注意到消費者物價指數又攀升了，不禁為每週買菜的開銷增加嘆了口氣。
consumer price index — a common economic index
Ishaan watches the stock market index every morning before making trades.
Ishaan 每天早晨交易前都會看股市指數。
stock market index — tracks share prices
An index of factory output showed that production had slowed over the summer.
工廠產出指數顯示夏季期間生產放緩了。
The housing price index in Seoul climbed faster than wages this year.
首爾的房價指數今年漲得比薪資還快。
Sivan spread three charts across her desk and compared housing, food, and fuel indexes before the budget meeting.
Sivan 在桌上攤開三份圖表，在預算會議前比較了住房、食品和燃料指數。
- consumer price index
- stock market index
- index rises/falls
- index of economic activity
- housing price index
- indicator
broader term — any sign that shows something; an index is a specific calculated number
- gauge
often a physical measuring tool; an index is an abstract numerical scale
- benchmark
a fixed reference point for comparison, not necessarily tracking change over time
- barometer
suggests sensitivity to change; often used figuratively
用法筆記
Often appears in names of specific measures: consumer price index (CPI), retail price index (RPI), FTSE 100 index. The plural 'indexes' is more common than 'indices' in everyday economics writing.
4. a noticeable sign, number, or piece of evidence that reveals how strong, common,
指標
顯示狀況強弱程度的跡象
a noticeable sign, number, or piece of evidence that reveals how strong, common, or serious something is
The number of empty shopfronts is a useful index of the town's decline.
空置店面的數量是該城鎮衰退的一個有用指標。
an index of + [condition being measured]
Rising hospital admissions served as an index of how severe the flu season was.
住院人數上升是流感季嚴重程度的一個指標。
A journalist used voter turnout as an index of public interest in the election.
一位記者用投票率作為公眾對選舉關注度的指標。
use something as an index of + [quality]
The team's energy on the pitch was a clear index of their confidence that day.
球隊在場上的活力是當天他們信心的明確指標。
Kabir noted that laughter in the classroom was a good index of student engagement.
Kabir 注意到教室裡的笑聲是學生投入度的良好指標。
- a useful index of
- a reliable index of
- serve as an index of
- a clear index of
- sign
more general and everyday; an index is more concrete and often quantifiable
- indication
a hint or signal; an index suggests a stronger, more reliable piece of evidence
用法筆記
This sense is more formal than everyday words like 'sign' or 'measure'. Often followed by 'of' to name what is being indicated.
5. short for index finger — the finger that sits beside the thumb and is normally u
食指
大拇指旁邊的手指
short for index finger — the finger that sits beside the thumb and is normally used when you point at something
Noa wore a silver ring on her left index finger, just above the knuckle.
Noa 在左手食指上戴了一枚銀戒指，就在指節上方。
index finger — the full phrase
The doctor pressed his index finger gently against the patient's wrist.
醫生用食指輕輕按住病人的手腕。
A small cut on her index finger made typing difficult for a few days.
食指上的一道小傷口讓她好幾天打字都很困難。
Omar pointed his index finger at the map and traced the route north.
Omar 用食指指著地圖，沿著路線向北畫去。
The child held up her index finger and asked the teacher a question.
那個孩子舉起食指，向老師問了一個問題。
hold up an index finger
- index finger
- left/right index finger
- point with one's index finger
- hold up an index finger
- forefinger
same meaning; 'index finger' is much more common in everyday speech
用法筆記
Almost always used in the phrase 'index finger.' Using 'index' alone to mean the finger is rare in everyday speech and sounds formal or old-fashioned.
常見錯誤
6. in mathematics, a small raised number or symbol written above and to the right o
冪
數學中表示自乘次數的符號
in mathematics, a small raised number or symbol written above and to the right of a base number that tells you how many times to multiply the base by itself
Madison pointed at the tiny raised two on the board and said, 'That index tells us to square the five.'
Madison 指著白板上那個小小的 2，對全班說：「那個冪告訴我們要把 5 平方。」
that index tells us to — identifying what the index means
Cole wrote the index above the base number to show repeated multiplication.
Cole 把冪寫在底數上方，用來表示連續相乘。
Eliska circled the index above the base number in her notebook and carefully multiplied the base three times.
Eliska 在筆記本上圈出底數上方的冪，然後仔細地將底數乘了三次。
index above the base number — showing position notation
Ayumi read the small raised four on the worksheet and multiplied seven by itself four times on scrap paper.
Ayumi 看了練習卷上那個小小的 4，在廢紙上把 7 自乘了四次。
negative index — a type of mathematical index
Aaron explained that the index indicates how many times to use the number in multiplication.
Aaron 解釋說冪表示該數字在乘法中使用的次數。
- index notation
- raise the index
- negative index
- index of [number]
用法筆記
This is a technical mathematics term. In school-level maths and everyday contexts, 'exponent' or 'power' is far more common than 'index.'
indexes — 動詞
- indexespresent simple I / you / we / they
- indexeses3rd person singular
- indexesing-ing form
- indexesedpast simple
1. to go through a book, collection, or database and build an alphabetical list of
編製索引
為書籍或資料編排檢索列表
to go through a book, collection, or database and build an alphabetical list of all the topics, names, or items in it, showing where each one can be found
The publisher hired Hana to index the new medical textbook over the summer.
出版社聘請 Hana 在暑假期間為新的醫學課本編製索引。
index + [book/publication] — direct object
Rachid spent every Saturday afternoon for three months indexing articles in the law review.
Rachid 花了三個月的時間，每個星期六下午都在為法律評論期刊編製文章索引。
Vinícius carefully indexed every plant species mentioned in the field guide.
Vinícius 仔細地為田野指南中提到的每種植物編製了索引。
carefully index — adverb collocation
The librarian showed volunteers how to index the donated book collection.
圖書館員向志工示範如何為捐贈的藏書編製索引。
how to index + [collection] — instructional use
Before printing, the author checked that her manuscript was properly indexed.
印刷前，作者確認她的手稿已經妥善編製了索引。
be properly indexed — passive form
- index a book
- carefully index
- properly indexed
- catalogue
to list items systematically with descriptions; 'index' focuses on alphabetical page references
文法句型
index + [book, collection, database]
用法筆記
Usually transitive. The object is the book, collection, or database being indexed — not the items listed inside it.
2. to link wages, prices, or interest payments to a published index so that they au
指數連動
依指數自動調整薪資物價
to link wages, prices, or interest payments to a published index so that they automatically rise or fall to match changes in that index — for example, linking pensions to the inflation rate
Tanvi sat with the retired teachers and explained their pensions were indexed to inflation, so payments would rise.
Tanvi 和退休教師們坐在一起，解釋他們的退休金與通膨指數連動，所以給付會調升。
be indexed to + [standard] — passive pattern
Noa's salary is indexed to the cost of living and rises automatically each year.
Noa 的薪資與生活成本指數連動，每年自動調升。
be indexed to + [index] — passive pattern
At the factory meeting, Sora stood up and demanded that wages be indexed to the rising cost of living.
在工廠會議上，Sora 站起來要求薪資要與不斷上升的生活成本指數連動。
Chidi's rent was indexed to a national housing index, so it went up slightly.
Chidi 的房租與全國住房指數連動，因此略微上漲。
Tamar showed her father the bond certificate and explained it was indexed to inflation to protect their savings.
Tamar 向父親展示債券憑證，解釋說它與通膨率指數連動以保護他們的儲蓄。
bonds indexed to + [rate] — financial context
- index to inflation
- be indexed to the cost of living
- index wages/pensions
- index-linked
- peg
to fix a value to a standard at one point in time; 'index' implies ongoing automatic adjustment
文法句型
index + [wages/prices/pensions] + to + [standard/index]
be indexed to + [standard/index]
用法筆記
Almost always passive ('be indexed to') or followed by 'to.' Subject is typically a payment or financial amount, not a person. Common in economics and finance writing.