兒子學習樂器後明顯比以前定性了。因為兒子本身是一個很活躍的小朋友。老師很有愛心，因為兒子真是會不停動來動去，但老師都可以控制他，讓他好好地練習小提琴。
After my son learns a musical instrument, he is obviously more qualitative than before. The son himself is a very active child, he will not stop moving, but the teacher is very caring and can control him, let him practice the violin well.
