When writing, it's important to have a variety of words at your disposal to avoid repeated phrasing. The phrase "was introduced" can be changed to a number of synonyms, including "was presented," "was unveiled," "was launched," "was initiated," "was announced," and "was inaugurated." All of these words can add depth to your writing and help you avoid using the same word repeatedly. Remember to choose the word that best fits the context and tone of your writing, and use a thesaurus to explore even more options. By expanding your vocabulary, you can make your writing more interesting and engaging for your readers.