名词
中文翻译：着色物质
同义词：
['coloring agent', 'coloring material例句：1. The artist used acrylic paint to colour the walls of the room.（艺术家使用丙烯颜料给房间的墙壁上色。）']
例句：
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1. The artist used acrylic paint to colour the walls of the room.
艺术家使用丙烯颜料给房间的墙壁上色。
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2. The children were given different colouring books to choose from.
孩子们被提供了不同颜色的涂色书来选择。
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3.The teacher explained that the colouring matter in the book was meant to be used for educational purposes only.
老师解释说，书中的着色物质仅用于教育目的。