Workers pick off phone books, glass and plastic bottles.
工人们则从中拣出电话本、玻璃和塑料瓶。
Toledo's glass industry currently employs just 2,500 workers.
托莱多的玻璃产业现在有2500名员工。
First, the workers put some hot glass onto one end of a long metal pipe.
首先工人们把一些热玻璃放到一根长金属管的一端。
Factory workers also use fire to make glass.
工厂的工人也用火制玻璃。
Factory workers also use fire to make glass.
工厂的工人也用火制玻璃。
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