5068ͯ · 3edu 233У Ӣ ߷ ѧŸ߿Դ ˸߿ 3GС˵ ҳϷ ҳϷ ߴʵ ѧ 麣С˵ Ƭȫ ѧϰ 21CN й ׿ Уһͨ С˵Ķ ¬С˵ С˵ ɢİ ǿ ΢С˵Ķ Ӧҵ