�值，然后是一个整数</span><span style="color: rgb(0,0,0); font-family: 'Times New Roman'; mso-spacerun: 'yes'">k</span><span style="color: rgb(0,0,0); font-family: '宋体'; mso-spacerun: 'yes'">，表示描述该物品的单词个数；接下来</span><span style="color: rgb(0,0,0); font-family: 'Times New Roman'; mso-spacerun: 'yes'"> </span><span style="color: rgb(0,0,0); font-family: 'Times New Roman'; mso-spacerun: 'yes'">k</span><span style="color: rgb(0,0,0); font-family: '宋体'; mso-space