expound/ɪkˈspaʊnd/
vt.陈述；说明The priest expounded his religion.神父解释他的宗教信仰。
What he has tried to expound in this article bears on a key problem in our economic reform.他在这篇文章中力图阐明的与我们经济改革中的一个关键问题有关。
The engineer expounded his designing ideas to the board of the directors.工程师向董事会说明自己的设计思想。