¾ÈÀüÇÏ°Ô ¿ÜºÎ¸µÅ©·Î À̵¿ÁßÀÔ´Ï´Ù. Àá½Ã¸¸ ±â´Ù·Á ÁÖ¼¼¿ä.
https://www.gohackers.com/?r=gohackers&c=gre_gmat%2Fgre_info%2Fgreknowhow&m=bbs&bid=greknowhow&cat=&sort=gid&orderby=asc&recnum=20&type=url&iframe=&skin=&display=&where=subject%7Ccontent&keyword=%EB%A6%AC%EC%9C%A0