VOA special English is used as a medium for teaching and learning interpretation for students of both in-service and distance modes. There are many elements which contribute to the success and failure of the students' performance, during the lessons as well as at the exams; one of which is the meanings of the commonly used words in the Program (VOA). Please have a look at the following link and see if you know all the words listed. If not, try to learn them, slowly and firmly. Even if you do, it is a good idea to revise them again and again to make sure that they become your active vocabulary. Good luck and hope to have your comments about the link.
http://www.manythings.org/voa/words.htm