aphthong 英 [æf'θɒŋ] 美 [æf'θɒŋ] 基本解释 n.不读音字母 同首字母单词 a [ə; eɪ] aaal aachen aacs aah [ɑː] aal aapamoor ['ɑːpəmʊə(r)] aapss aar aardvark [ˈɑːdvɑːk] aardwolf ['ɑːdwʊlf] aare