所属栏目:英语语音
IntroductionThere are three central vowels in English: /&652;/, /з:/, /&601;/. In forming the centralvowels,the middle of the tongue is raised toward the dividing line between the hardand soft palates. For /з:/ the tongue rises as high as for /e/, but is ......(本文共 11918 字 , 3 张图) [阅读本文] >>