piece root grafting

例句：

1. 1. The chef carefully cut each piece of meat to ensure it was cooked evenly.
   厨师小心翼翼地切每一片肉，确保它们均匀煮熟。
2. 2. The artist used a brush to paint the picture in sections.
   艺术家用刷子将画分成若干部分来画。
3. 3. The scientist divided the sample into several pieces for analysis.
   科学家将样本分成几部分以便分析。