用于增白的物质；漂白剂。
whiteners — plural of whitener
用于增白的物质；漂白剂。；增白剂；漂白剂
用于增白的物质；漂白剂。
Any substance used to whiten something; a bleach.
使物体变白或无色的物质
an agent that makes things white or colorless
受雇进行增白或漂白的人。
A person employed to whiten or bleach.
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