13. The virtual learning system of claim 1 , further comprising a random access selector communicatively coupled to the computer, wherein the random access selector is configured to receive a request for random access from a user, and select a word from the first database at random in response to the request.
14. The virtual learning system of claim 13 , further comprising an audio playback unit communicatively coupled to the computer and configured to play audio content corresponding to the randomly selected word, such that the user hears the randomly selected word spoken by the audio playback unit.