expatiate upon详细阐释
expatiate e祥述
rational expatiate理性阐释
deep expatiate深入阐述
expatiate on a subject详述一个题目
expatiate on a subject detail详述一个题目
同义词:elaboratelucubrateexpositenlargeflesh outexpandexpounddilate
V(动词) to enlarge (on a theme, topic, etc) at length or in detail; elaborate (on) 阐述(主题、话题等)