用作名词 (n.)
- Indigo dyes can be used on wool.
靛蓝染料可用于羊毛面料。
- Staining of ancient China is contained in natural plant pigments, such as the indigo blue dye.
我国古代染色是采用天然植物中所含的色素，如染青蓝色的靛蓝。
- Ionized nitrogen molecules issued purple and blue light.
电离的氮分子则发出紫蓝色的光。
- The aspic is one kind of strongly fragrant purple blue color floret.
薰衣草是一种馥郁的紫蓝色的小花。
