1、复合辅音 th, th, kn, wr, mb 一级拼读th - tha the thi tho thu thai thee thie thoa thoo thau thor ther thir thur thingwr - wra wre wri wro wru wrai wree wrie wroa wrau wrui wroo wrar wror wrir wrer wrur wringkn - kna kne kni kno knu knai knee knie knoa knau knaw knui knoo knar knor knir kner knur kningmb - am
2、b emb imb omb umb aimb eemb iemb oamb uimb aumb oomb armb ormb ermb irmb urmb 复合辅音 th, th, kn, wr, mb 单词拼读th: thumb three bathmat thirsty thief bath mouth teethth: brother feather leather father mother farther further themkn: knob knee knife knock knit know knew knownwr: wrist wrinkle wrap wreath write wrote writtenmb: thumb lamb bomb comb crumb numb
