apothem 英 ['æpəθem] 美 ['æpə,θɛm] 基本解释 n.[数]边心距离 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