How to edit Google translate in local website

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Javascript

google-api

I have a local website in English, but i want to translate it into another language.

But the result is not good, many word is not right. So i want to edit them. But i know that it is only work on a domain and cannot in local host. So can any one could tell me how to edit it in local host.

And another, how can i hide the google toolbar on the website to make it translate automaticaly.

Thank you very much.

What I have tried:

I try to use translate like this

<script type="text/javascript">
function googleTranslateElementInit() {
new google.translate.TranslateElement({pageLanguage: 'en', includedLanguages: 'vi', layout: google.translate.TranslateElement.FloatPosition.BOTTOM_LEFT}, 'google_translate_element');
}
</script><script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>