expoundedɪkˈspaʊndid英式朗读美式朗读基本解释v. 论述, 详细讲解( expound的过去式和过去分词 )英文释义imp. & p. p. of Expound词形变化原形expound过去式expounded上一个单词:expound upon下一个单词:expounder