Free Api for Google Translate
// Namespace: GoogleTranslateApi
// Constructor Parameters: GoogleTranslator(SourceLanguage, TargetLanguage);
GoogleTranslator translate = new GoogleTranslator(Language.Portuguese, Language.English);
// This Function Will return the Translated Text
string TranslatedText = translate.Text("Olá Mundo");
// In a assynchronous context
string TranslatedText = await translate.GetTextAsync("Olá Mundo");