Definition: The word "RU_RU.php" refers to a PHP file that contains data, but its purpose isn't clear without more context. Its specific meaning might vary depending on the programming language or framework it's in use. For example, if this is a website using PHP and MySQL, a server-side script would be the `RU_RU.php` file. If it's for a different application, such as a web app using JavaScript, that file could be named something like "index.js". Please provide more specifics!
closed bracket.
what should be said.