pile extracting

例句：

1. 1. The artist piled up layers of color to create a stunning mosaic.
   艺术家层层叠加色彩来创作一幅惊人的马赛克。
2. 2. The scientist extracted valuable information from the ancient texts.
   科学家从古代文献中提取了宝贵的信息。
3. 3. The farmers piled up the harvest for winter storage.
   农民们把收获的庄稼堆起来准备过冬储存。