At one time paper mills were the industrial base for the region.造纸厂曾一度是这个地区的工业支柱。We float the logs down the river to the paper factory.我们让木材顺流而下漂到造纸厂。He lived a pedestrian life, working at the paper mill and living in his trailer.他过着平淡的生活，在造纸厂上班，住在拖车里。