liyundi,a well-known chinese pianist,always loved music.中间为什么要用逗号?

问题描述:

liyundi,a well-known chinese pianist,always loved music.中间为什么要用逗号?

同位语,进一步解释说明李云迪的身份逗号可用什么代替吗用逗号最简洁了,再比如:My friend, Mike,likes playing football。