1. Google Translation tool: It will translate text, a website; check the website for more tools and details. Google Translator
2. The Mac Dashboard. FnF12 will open up the dashboard on a Mac. The default opens up the default widgets. You can add more by clicking on the + sign on the bottom left. The translation widget is not there by default. You will explicitly have to add it. Once added, it stays on the dashboard. You can translate text from one language to another using this widget.