[Những kẻ cÆÂÂÂ%C2] [thÃÂÂ] [trạihoaÄ‘á»] [toán 7] [�ѧߧ��ߧ�ӧܧ� �է�ߧ֧��ܧ�] [năm bước] [�����շ���] [�й�������˹̹] [hoang dao] [I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail 什么意思]