dilate on/upon something phrasal verbphr v formal EXPRESSto speak or write a lot about something 详述某事,铺叙某事 He dilated upon their heroism. 他详述了他们的英勇行为。
dilate on/upon • To catch the voice of truth itself dilating on the great problems of reality will be one of my prime technical aims.
→ dilate on/upon something at dilate(1)