This is because the distance from the eyes to the keyboard or music stand is intermediate between reading and distant vision.
因为在弹奏时眼睛与键盘或乐谱的距离正好在平时阅读视距和眺望远处的物体之间。
This is because the distance from the eyes to the keyboard or music stand is intermediate between reading and distant vision.
因为在弹奏时眼睛与键盘或乐谱的距离正好在平时阅读视距和眺望远处的物体之间。
应用推荐