to expatiate
例子
When asked about his travels, he expatiated enthusiastically, describing every location in vivid detail.
当被问及他的旅行时，他热情地详细阐述，生动地描述了每一个地点。
The journalist expatiated on the political implications of the recent policy changes in her column.
记者在她的专栏中详细阐述了近期政策变化的政治影响。
