今天,我们班去参观印刷厂,大家好兴奋呀!来到印刷厂,记者叔叔给我们安排了讲解员——郑叔叔。郑叔叔首先带我们了解了纸张。印刷用的纸张有卷筒纸和平版纸,还有做封面和插页的铜版纸和双面铜版纸。我们知道纸是用木头做成的,所以要更加爱惜书本,保护环境。 Today, our class to visit the printing plant, we are so excited! Came to the printing house, the reporter uncle arranged for us to explain - Uncle Cheng. Uncle Zheng first took us to understand the paper. Printing paper with rolls and offset paper, as well as cover and insert the coated paper and double-sided coated paper. We know that paper is made of wood, so we should cherish books more and protect the environment.