Imagine that you want to cook a Chinese meal from an authentic Chinese recipe. You search for the recipe in Google by the English name of the dish, and the search engine translates your query into Standard Mandarin, performs the search and finds some recipes in that language, and returns those pages to you with an option to translate them into English.
Or, you have an assignment for your philosophy class, and you want to write a paper on Benedetto Croce and his Philosophy of Spirit. You’ve read some papers on him published in English, but would like to find some in Italian.
You go to Google, and choose “Italian” as a language that you would like to see source pages from as you enter his name into the search box. The search engine looks through Italian language results that contain the name Benedetto Croce, finds a number of results, and provides page titles and snippets that it finds. Clicking on a “translate” link next to the title to one of those pages will bring you the page translated into English.
Perhaps you’ve decided that you want to start biking to work instead of commuting by car, and you want to learn more about biking and bicycles. You enter a search into Google for the word [biking], and the search engine looks at statistical associations that it has created between keywords and Web content, and not only returns results to you for [biking] but also for the word [cycling].