The teacher used the masking method to minimize distractions and focus on the main concepts of the lesson.
老师使用淡化突出重点教学法来减少干扰，专注于课程的主要概念。
In this strategy, less important details are masked to highlight the key learning objectives.
在这种策略中，不太重要的细节被淡化，以突出关键的学习目标。