Unit 3 Front Vowels:/i:/，/&618;/，/e/，/&230;/
基础科学

Unit 3 Front Vowels:/i:/，/&618;/，/e/，/&230;/图片（共4张） :

        IntroductionThere are four front vowels in English: /i:/, /&618;/, /e/ and /&230;/. In forming the frontvowels the front of the tongue is chiefly instrumental in giving the vowels their quality.The varying distance of the tongue from the hard palate in co......（本文共 18844 字, 4 张图）     [阅读本文] >>