If you need to see the usage for any of the methods, do a

>>> from vocabulary import Vocabulary as vb
>>> help(vb.translate)
Help on function translate in module vocabulary.vocabulary:

translate(phrase, source_lang, dest_lang)
    Gets the translations for a given word, and returns possibilites as a list
    Calls the glosbe API for getting the translation

    <source_lang> and <dest_lang> languages should be specifed in 3-letter ISO 639-3 format,
    although many 2-letter codes (en, de, fr) will work.

    See for full list.

    :param phrase:  word for which translation is being found
    :param source_lang: Translation from language
    :param dest_lang: Translation to language
    :returns: returns a json object

and so on for other functions