This stereo Two-Tone CD contains both source material for you to practice interpreting and a model interpretation of that same material by an expert interpreter. The source material is on the left channel of the CD, and the interpretation is on the right channel. Thus, by using your stereo's balance control, you can hear only the source, only the interpretation, or both. If your stereo does not have a balance control, you can use head phones or ear buds and listen to only one side at a time.
When you listen to the interpretation provided on the CD, not only are your terminology questions about the passage answered, you also gain valuable insights into the time lag, or décalage employed by an expert interpreter.
The English-Arabic Two-Tone CD contains English source material, with a simultaneous interpretation into Arabic by Mr. Esho Yousif, a former UN conference interpreter now attached to the Defense Language Institute.