bluing

例句：

1. 1. The artist used blue ink to create his masterpiece.
   这位艺术家用蓝色墨水创作了他的杰作。
2. 2. The book was written in blue ink on yellow paper.
   这本书是用蓝色墨水在黄色纸上写的。
3. 3.The old manuscripts were preserved with blue ink and yellowed pages.
   这些古老的手稿是用蓝色墨水和发黄的页面保存下来的。