第1个回答 2012-08-06
third，thirty thirteen
sir,first,birthday,shirt,stir,circle,dirty,skirt，Affirm, birch birth, circle, circuit, circular, fir, firm, first, shirt, skirt, stir, thirsty, virtue, whir, chirp
第2个回答 2013-02-26
sir,first,birthday,shirt,stir,circle,dirty,skirt，Affirm, birch birth, circle,
第3个回答 2012-02-13
birthday ,tire ,fire ,hire .hair irregular不规则的 bird third fire。等等