平版工

例句：

1. 1. The printingworkers are busy with their work.
   印刷工人正在忙于他们的工作。
2. 2. The printing workers need toimprove their skills for better output.
   印刷工人需要提高他们的技能以获得更好的输出。
3. 3. Theprinting workers are responsible for the quality ofthe printed materials.
   印刷工人负责印制材料的质量。