
好词典

源自拉丁语 'dilatare',由 'dis-'(分开)和 'latus'(宽的)组成,字面意思为「使变宽」。14世纪后期进入英语。
❶ 指身体部位的扩大或膨胀,通常用于描述瞳孔、血管等在生理或病理状态下的扩张现象。
“The doctor used eye drops to dilate my pupils for the examination.”
(医生用眼药水扩大我的瞳孔以便检查。)
“Blood vessels dilate in response to heat to help cool the body.”
(血管遇热会扩张以帮助身体降温。)
❶ 引申为对话题、观点等进行详细阐述或扩展说明的行为。
“She dilated on the importance of education for nearly an hour.”
(她花了近一小时详细阐述教育的重要性。)
“The professor dilated upon the historical context of the novel.”
(教授详细扩展了这部小说的历史背景。)
dilate on — 详细讨论或描述某个主题,通常指长时间或深入地展开说明。
“He loves to dilate on his travels in South America.”
(他喜欢详细讲述他在南美洲的旅行经历。)