protected function _isTranslateAble($sString)
    {
        $sPattern = $this->getTranslationPattern();
        $aMatches = array();
        if (is_array($sString)) {
            $sString = implode('_DELIMITER_', $sString);
        }
        preg_match_all("|{$sPattern}|", $sString, $aMatches);

        if ($aMatches['key'] > 0) {
            $this->_setKeys($aMatches['key']);
            return true;
        }
        return false;
    }