No matter you are an educator or a self-learner, DLL is your best tool for language teaching and learning! DLL is the first three-inone (Audio + Video + Text) multimedia language laboratory software system in the world. It provides you with an interactive environment which brings communication, practice and enjoyment together.t
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•  + Pronunciation practice
•  + Listening
•  + Presentation skills training
•  + practice
•  + Interactive language learning activities