此函数支持多种语言。

如无额外参数，则默认是将中文翻译为英文。

#------------------------------------------------------------------------------
# depend on BeautifulSoup
# translate strToTranslate from fromLanguage to toLanguage
# return the translated unicode string
# some frequently used language abbrv:
# Chinese Simplified:   zh-CN
# Chinese Traditional:  zh-TW
# English:              en
# German:               de
# Japanese:             ja
# Korean:               ko
# French:               fr    
# more can be found at: 
# http://code.google.com/intl/ru/apis/language/translate/v2/using_rest.html#language-params
def translateString(strToTranslate, fromLanguage="zh-CN", toLanguage="en"):
    transOK = False;
    translatedStr = strToTranslate;
    transErr = '';

    try :
        # following refer: http://python.u85.us/viewnews-335.html
        postDict = {'hl':'zh-CN', 'ie':'UTF-8', 'text':strToTranslate, 'langpair':"%s|%s"%(fromLanguage, toLanguage)};
        googleTranslateUrl = 'http://translate.google.cn/translate_t';
        resp = getUrlRespHtml(googleTranslateUrl, postDict);
        #logging.debug("---------------google translate resp html:\n%s", resp);
    except urllib2.URLError,reason :
        transOK = False;
        transErr = reason;
    except urllib2.HTTPError,code :
        transOK = False;
        transErr = code;
    else :
        soup = BeautifulSoup(resp);
        resultBoxSpan = soup.find(id='result_box');
        if resultBoxSpan and resultBoxSpan.span and resultBoxSpan.span.string :
            transOK = True;
            #translatedStr = resultBoxSpan.span.string.encode('utf-8');
            googleRetTransStr = resultBoxSpan.span.string;
            translatedStr = unicode(googleRetTransStr);
            
            # just record some special one:
            # from:
            #【转载】[SEP4020  u-boot]  start.s  注释
            # to:
            # The 【reserved] [the SEP4020 u-boot] start.s comment
        else :
            transOK = False;
            transErr = "can not extract translated string from returned result";

    transErr = str(transErr);
    
    if transOK :
        return (transOK, translatedStr);
    else :
        return (transOK, transErr);
        

(transOK, translatedStr) = translateString(strToTrans, "zh-CN", "en");
            

#------------------------------------------------------------------------------
# translate the Chinese Simplified(Zh-cn) string to English(en)
def transZhcnToEn(strToTrans) :
    translatedStr = strToTrans;
    transOK = False;
    transErr = '';

    if strIsAscii(strToTrans) :
        transOK = True;
        translatedStr = strToTrans;
    else :
        (transOK, translatedStr) = translateString(strToTrans, "zh-CN", "en");

    return (transOK, translatedStr);
        

(transOK, translatedName) = transZhcnToEn(nameUtf8);