Flashcard Exchange User: cleber http://www.flashcardexchange.com/user/251865 en-us Thu, 16 Feb 2012 01:06:45 PST Thu, 16 Feb 2012 01:06:45 PST support@flashcardexchange.com 720 Semantic Primitives http://www.flashcardexchange.com/flashcards/view/467232 List of words common to every language Mon, 07 May 2007 12:00:00 PDT http://www.flashcardexchange.com/flashcards/view/467232