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n (1)數(shù)(目);號(hào)碼(symbol or word showing a quantity of units;numeral)[C]：The～s 6 and 3 are factors of 18. 3和6都是18的因數(shù)。3 and 5 are odd～s and 2 and 4 are even～s. 3和5是奇數(shù)，2和4是偶數(shù)。 Would you like to leave your telephone～? 請(qǐng)你留下電話號(hào)碼好嗎? He knew the room～. 他知道房間號(hào)?！纪絝igure，symbol;

(2)數(shù)量;總數(shù)(quantity or amount) (用單數(shù)或復(fù)數(shù)形式，作主語時(shí)若前面有形容詞，動(dòng)詞用復(fù)數(shù)形式)：The～of tourists to that place is limited. 去那地方旅游的人數(shù)有限制。The～of students absent is 6. 缺席的學(xué)生共六人。There are a million camels in India and the～is growing.印度有上百萬頭駱駝，而且數(shù)量還在增加。A large～of people have refused to come. 許多人都拒絕來?！纪絘mount，quantity，sum，total;

(3)一群(些)人(a specified or recognized set，class，or group)(fml)[C，sing]：She was not of/among their～. 她不是他們那樣的人/那一伙里的。One of their～refuses to work for the very low wages that are offered to them. 他們一伙中的一個(gè)嫌給的工資太低拒絕去工作。

(4)(abbrs No，no;AmE symb #)[C] (用于數(shù)字前表示序號(hào))：Mary lives at No 4 Wood Street. 瑪莉住在伍德大街4號(hào)。I wear～8 shoes. 我穿8號(hào)的鞋子。Then I caught the N～10 trolley bus to the Catholic church. 后來我乘10路無軌電車去了天主教堂。

(5)(報(bào)刊等的)期，冊(cè)(an issue of periodical or serial publication)[C]：(the) back/inaugural/latest/special/current～of “Punch” 過期的《笨拙》周刊/《笨拙》周刊的創(chuàng)刊號(hào)/最近一期的《笨拙》周刊/《笨拙》周刊的特刊號(hào)/本期的《笨拙》周刊;Have you yesterday's～of The Thames? 你有昨天的《泰晤士報(bào)》嗎?

(6)一個(gè)(節(jié)目) (a single item in a programme)[C]：a song/ballroom～一支歌/舞曲;She had several～s in the second act. 她在第二幕中有幾場(chǎng)戲。For her third～she played a nocturne.她演奏的第三個(gè)節(jié)目是小夜曲。

(7)(語法上的)數(shù)(a difference of form showing whether only one person or thing is meant，or more than one)[U]：“Men”(“Man”) is plural (singular) in～. men(man)是復(fù)(單)數(shù)。The most important type of concord in English is concord of～between subject and verb. 英語中最重要的一致關(guān)系就是主語和動(dòng)詞在數(shù)上的一致。

(8)展示的物品(an item of merchandise on show，usu，of clothing)[C，sing](前面有形容詞)：a snappy little green～一件漂亮的綠色短上衣;That new Ford is a fast little～. 那輛新福特汽車是一種高速小車。

(9)算術(shù)(arithmetic)[pl]：I'm not good at～s. 我不擅長(zhǎng)算術(shù)。He doesn't like～s. 他不喜歡算術(shù)。

by numbers 1)靠數(shù)目大;靠人多：We lost the tug-of-war，but they won by～s. 撥河比賽我們是輸了，但他們是靠人多取勝的。2)分開地：drill movement by～s 分開操練動(dòng)作; 3)系統(tǒng)地;按常規(guī)地;機(jī)械地：reading by～s 機(jī)械地閱讀;

have got sb's number(sl) 知道……的底細(xì)：I used to think he was a friend of mine，but now I've got his～. 我以前一直認(rèn)為他是我的朋友，但現(xiàn)在我看透他了。

sb's number is up(sl) 某人的死期已到：If her friends find out the bad things she has said about them，her～is up!如果她的朋友們知道了她說他們的那些壞話，她就死定了。

number one(infml) 1)自己;本人：He is always looking out for～one. 他總是謀求自身利益。2)頭號(hào)(等)的：He is America's～one golfer. 他是美國高爾夫球的頂尖高手。

vt (1)編號(hào)(give a number to sb/sth)[T+n，T+n+prep]：Have you～ed the pages? 你編頁碼了嗎? We were all～ed as we went in. 我們進(jìn)去的時(shí)候都被編了號(hào)。Let's～them from 1 to 20. 讓我們從1到20給他們編上號(hào)。Can you～from one to ten in French? 你能用法語從1數(shù)到10嗎?〖同〗numerate，reckon，count，calculate;〖反〗lump，mass;

(2)計(jì)有;總共(add up to，be a total of，altogether)[T+n/prep]：We～ed fifty in all. 我們總共50人。The complaints we received can be～ed in the thousands. 我們收到的控告累計(jì)有數(shù)千起。

number sb/sth among sth 把……算作;計(jì)入;包括：I～George among my very best friends.我把喬治看成是我最好的朋友之一。

number off (軍事)報(bào)數(shù)：The soldiers～ed off from left to right. 戰(zhàn)士們從左向右報(bào)數(shù)。

→′numberless adj 數(shù)不清的;out′number v 數(shù)量上勝過;多于;′unn′umbered adj未計(jì)數(shù)的;無數(shù)的;

【辨異】number和sum都指總計(jì)。number用于表示計(jì)算和估計(jì)的結(jié)果，它著眼于總計(jì)中人或物的個(gè)體，如：a number of items on the agenda (議事日程上的許多項(xiàng)目)。sum表示相加的結(jié)果，它更強(qiáng)調(diào)總數(shù)，如：a large sum of money (一大筆錢)。