expound/ɪkˈspaund; ɪk`spaʊnd/ v[Tn, Tn.pr]~ sth (to sb) (fml 文) explain or make sth clear by giving details 详加解释或详述某事物 expound a theory 详细解释一理论 He expounded his views on education to me at great length. 他向我详细讲述了他的教育观点.
牛津英汉双解词典