How to get Google translator to speak slowly

Using "thou" sometimes helps, and so does "you all", but there is no foolproof way to get the correct form.

Google translate is based on statistical inference (not structural parsing / substitution), so the vous/tu usage is inconsistent.

you are very pretty -> tu es très jolie

you are very nice -> vous êtes très belle

I can only speculate "pretty" is more intimate than "nice" and more often encountered with "tu" forms in parallel translations Google's algorithms were trained on.

All I had to do is to click in the "Translate" button and the URL was updated. The instant translation doesn't update the URL.

The URL format is:

http://translate.google.com/#origin_language_or_auto|destination_language|encoded_phrase
or
http://translate.google.com/translate?js=n&sl=auto&tl=destination_language&text=encoded_phrase

If you want to translate a webpage, use:

http://translate.google.com/translate?js=n&sl=auto&tl=destination_language&u=http://example.net

destination_language must be a language code, like en for English or pt-BR for Brazilian Portuguese. You can also set a value for sl (source language) instead of "auto".