单词	lens of camera
释义	lens of camera 摄影机镜头
随便看	learning by deduction learning by discovery learning difficulty learning dilemma Learning Disorders,Adult Learning,Distance learning by doing Learning-by-doing learning-by-doing curve learning-by-doing model learning by example learning by experience learning by experimentation Learning by Exporting learning by imitation learning by independent exploration learning by induction learning by insight learning by instruction learning by machine learning by observation learning by oneself learning by repetition Learning by research learning by researching