actinide 英 ['æktɪnaɪd] 美 ['æktɪˌnaɪd] 基本解释 n.[化]锕类 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