gistfile1.cs

    public class TranslateAPI
    {
        private string TranslateURL { get; set; }

        public TranslateAPI()
        {
            var appConfig = ConfigurationManager.AppSettings;
            var baseurl = appConfig["TranslateBaseURL"];
            var apiKey = appConfig["TranslateAPIKey"];

            TranslateURL = baseurl + "?key=" + apiKey;
        }

        public string Translate(string content, string fromLanguage, string toLanguage)
        {
            // build up the url
            var requestUrl = TranslateURL + "&q=" + HttpUtility.UrlEncode(content) + "&source=" + fromLanguage + "&target=" + toLanguage;

            // connect to the url and download the result string
            var translateClient = new WebClient();
            var result = translateClient.DownloadString(requestUrl);

            // ship it back to the caller
            return result;
        }
    }