Applied to the skin, ginger stimulates and dilates the blood capillaries.把姜贴在皮肤上能刺激和扩张毛细血管。

Exercise dilates blood vessels on the surface of the brain.运动会使大脑表层的血管扩张。

At night, the pupils dilate to allow in more light.到了晚上, 瞳孔会扩大以接收更多光线。

I shall a little more amply dilate upon it in several propositions.我将在几份提案中更充分地阐述这一点。