Bing translator is IE8 Add-on enables you to translate any selected phrase or sentence to you native language at your finger tips. You don’t need to open other tabs as it will translate at any page.
After installing the add-on,
Select the sentence ->right click->hover over the “Translate with Bing” and language translator will be displayed. This dialog box contains primary and secondary languages which you can choose for translation.
Bing translator can be downloaded from there
Internet Explorer 8: Download Here