aapss 基本解释 American Academy of Political and Social Science 美国政治和社会科学研究院 同首字母单词 a [ə; eɪ] aaal aachen aacs aah [ɑː] aal aapamoor ['ɑːpəmʊə(r)] aar aardvark [ˈɑːdvɑːk] aardwolf ['ɑːdwʊlf] aare aarnet