It's estimated that dumped computers take ten thousand years to break down, leaving a cocktail of toxic materials including lead and mercury.

这些废弃电脑预计要超过一万年才能分解，留下许多有毒物质，包括铅和汞。

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But he said that providing technical support when computers break down was going to be an important issue for schools, which had yet to be resolved.

BBC: Future imperfect?

But the people who buy our computers want small, inexpensive machines that don't break down.

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