该校通俗音乐学院院长杨士春解释说，艺术院校聘请明星当教授是艺术院校的专业特点决定的。

However, Yang Shichun, pop music department head of the college, said hiring stars to teach is decided by the specialty of the conservatory.

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萧士赟补杨齐贤注的内容纷纭复杂，有的可有可无，有的则起到了简化、补充和完善原注的作用，还有的纠正了杨齐贤注的失误。

The annotation is very complicated, some contents are unnecessary , some play important roles in simplifying, compensating and correcting the original annotation.

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