1. A method of translating a text of a first language into a text of a second language, comprising: a first step of providing individual identification numbers to words/idioms which appear in the text of said first language to identify the words/idioms, in accordance with a predetermined order by managing saidi words/idioms as data sorted in a table in which said words/idioms are arranged in accordance with said predetermined order with the same identification number being provided to the same word/idiom; a second step of generating the text of said second language including said identification numbers as well as character strings of said second language corresponding to said words/idioms of said first language in which the identification numbers for the words/idioms of said first language corresponding to the character strings of said second language are appended as data of fixed length in correspondence with the respective character strings of said second language; and a third step of indicating the identification numbers appended to the character strings of the second language, so as to make it possible to trace the words/idioms of the first language using said identification numbers.