希望提高他们的口语，听力，阅读或写作能力的人可能希望学习专业交流。该领域致力于改进专业背景和工作场所信息的传播和分配。

Courses are academic classes taught by qualified instructors that are intended to enhance participant’s knowledge of a given area or training in a particular discipline. Courses vary broadly in terms of length, size, content and duration.