Almost 80% of the discarded electronics come from overseas, including the United States.

大约80%的废弃电子产品都来自海外，其中也包括美国。

youdao

With the rapid development of the electronics industry, how to recycle the discarded electronic circuit boards effectively has become a new topic.

电子工业迅猛发展，如何有效回收利用废旧电子线路板已成为一个新课题。

youdao

The U.S. Environmental Protection Agency estimates that in 2009, more than 82% of discarded electronics went to landfills and incinerators.

FORBES: Scavenging World's Mega-Dumps for Precious E-Waste