avouch 英 [ə'vaʊtʃ] 美 [ə'vaʊtʃ] 基本解释 v.确保 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