bluing

n.靛青漂白粉

使白发恢复黑色的染发剂；蓝化剂

名词

1. She used bluing to make her white clothes appear brighter.
她使用蓝化剂使她的白衣服看起来更亮。
2. Grandma adds a little bluing to her laundry to make the whites whiter.
奶奶在洗衣时加一点蓝化剂，让白色更白。