A simple introduction to the meaning of numbers and sets as a rooster, on his way to see the world, is joined by fourteen animals along the way.
详细地址：广东省广州市越秀区文明路213号 邮政编码：510110 咨询电话：020-83822369 / 81162666 技术支持：jsb@zslib.com.cn 咨询建议：ckzx@zslib.com.cn