摘要
一般消费者平均每18个月就有一部新的智能手机，因此美国人现在有越来越多的数码废弃物。而且根据某些评估，其中许多废弃的手机仍然具有一些价值，可以回收捐赠，或是变卖为现金．光是在美国就有8亿部这样的手机。
With the average consumer getting a new smartphone every 18 months, Americans are sitting on an ever growing heap of digital discards.And many of those abandoned phones--by some estimates, 800 million in the United States alone--still hold some value, either as recycled donations or cold hard cash.
