adult learning features的用法和样例：
- As far as adult learning is concerned, training is the process of exercising experience, and trainer is the coacher and facilitator.
- Brookfield, S. D., Understanding and facilitation adult learning: A comprehensive analysis of principle and effective practice. San Francisco: Jossey-Bass, 1986.
- The workshop is led by clinical psychologist Robert K egan, PhD, and Lisa L ahey, E dD, experts in adult learning at the Harvard Graduate School of Education.
- It plays a positive role in creating active class atmosphere, enhancing adult learner's interest in studying, and improving their learning results.