jane is good at playing the piano,请划分一下句子成分.越细越好.
问题描述：
jane is good at playing the piano,请划分一下句子成分.越细越好.
答
jane主语
is good at playing the piano系表结构作谓语,其中,playing the piano作介词at 的宾语；又,the piano 作playing的宾语