It takes the careful eye and ear of a good teacher to make sure that distracting and physically dangerous tension does not develop when trying to deal with a scale or arpeggio configuration.

• 当学生在练习音阶和琶音技巧的时候，好的老师会在一旁仔细观察以确保学生不发生注意力分散或过于紧张的情况。