基本解释n.靛青；紫蓝色同根派生 英汉例句用作名词 (n.)This traditional costume is of indigo blue.这件传统服装是靛蓝色的。Indigo is a natural ingredient in blue.靛青是蓝色的一种自然配料。Blue from indigo plant is deeper than its origin.青出于蓝而胜于蓝。