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　　数字“三”十分奇妙。“三”可组成各自独立又相互联系的整体。时间(time)分为现在(present)、过去(past)和将来(future)三个阶段。空间(space)由长(length)、宽(width)和高(height)三维(three dimensions)组成。物态(physical state)有三种，分别为固体(solid)、液体(liquid)和气体(gas)。

　　文学作品更加偏爱数字“三”。传统相声《歪批三国》列举了《三国演义》(The Romances of Three Kingdoms)中“桃园三结义”“三英战吕布”“三顾茅庐”和“三气周瑜”等大量带“三”的事件。大作家的鸿篇巨制不乏“三部曲”(trilogy)。大仲马(Alexandre Dumas,père)的达太安 三部曲(d’Artagnan trilogy)《三剑客》(The Three Musketeers)、《二十年后》(Twenty Years After)和《铁面人》(The Vicomte de Bragelonne)，高尔基(MaximGorky)的自传体三部曲(autobiographic trilogy)《童年》(My Childhood)、《在人间》(Inthe World)和《我的大学》(My Universities)，巴金的激流三部曲(the torrents trilogy)《家》(The Family)、《春》(Spring)和《秋》(Autumn)，以及金庸(Louis Cha)的射雕三部曲(the condor heroes trilogy)《射雕英雄传》(The Legend of the Condor Heroes)、《神雕侠侣》(The Return of the Condor Heroes)和《倚天屠龙记》(The Heaven Sword andDragon Saber)，都是脍炙人口的传世佳作。

　　人们希望用一个尽可能小的数字表现尽可能广泛的代表性。“一”太少，“二”不够，“三”正好。汉语有一些带“三”的格言和俗语正好体现了这种广泛的代表性。例如：

　　1. 三人行必有我师。

　　(1)If three of us are walking together, at least one of the other two is good enough to be myteacher.(直译)

　　(2)In the company of three, I can always find a teacher./ You can always find something tolearn from the people who keep you company.(意译)

　　2. 三个臭皮匠，顶个诸葛亮。

　　(1)Three humble cobblers with their wits combined can equal Zhuge Liang, the mastermind.(直译)

　　(2)There is always wisdom in a crowd of people.(意译)

　　3.举一反三。

　　(1)You can infer other three things from one fact.(直译)

　　(2)From one sample you may judge the whole./ You can draw inferences about other casesfrom one instance./ You can just mention one example which serves for the rest.(意译)

　　同样地，英语也有带 three的谚语，体现了这种广泛的代表性，即“许多”(many)、“所有的”(all)或“每一个”(every)。例如：

　　4. When three know it, all know it./ What is known to three is known to everybody. 三人知，天下晓。

　　5. To him that does everything in its proper time, one day is worth three. 事事及时做，一日胜三日。

　　“三”还可以暗示一种极限。下面的汉语例句表示较高极限(maximum)，即“较多”(at most)。

　　6. 三句话不离本行。

　　(1)He never utters three sentences without talking about his own work.(直译)

　　(2)He can hardly open his mouth without talking shop./ He never begins a talk withoutreferring to his own line./ You are talking shop all the time./ You are really a shop talker.(意译)

　　7. 富不过三代。

　　(1)A rich family cannot remain rich for more than three generations./ The wealth of a family willnot last three generations.(直译)

　　(2)Great men’s sons seldom do well.(意译)