柯林斯詞典dilate /da??le?t/ (dilating,dilated,dilates) 1. V-T/V-I When things such as blood vessels or the pupils of your eyes dilate or when something dilates them, they become wider or bigger. 使擴大; 擴大 At night, the pupils dilate to allow in more light. 晚上，瞳孔放大以便讓更多的光線射入。2. dilatedADJ 擴大的 His eyes seemed slightly dilated. 他的雙眼瞳孔似乎稍微擴大了些。 返回 dilated劍橋詞典wider or further open than usual 膨脹的；擴大的，經擴張的 dilated pupils 放大的瞳孔 返回 dilated