We see evidence of this in real life. Once anything that can be copied is brought into contact with internet, it will be copied, and those copies never leave.

现实生活中我们已经能看到证据，一旦任何能被拷贝的东西被放到互联网上，它就会被拷贝，而且那些拷贝永远不会消失。

youdao

To date, all evidence indicates that patients have acquired their infections following close contact with diseased poultry.

迄今为止，所有证据表明，患者在与病禽密切接触之后获得感染。

youdao

There is a mountain of evidence, he says, that more personal forms of contact are better.

他说，大量的证据表明，更多的个人式联系更为有效。

youdao

"However,if we begin to see numbers of people who are getting infected who have not any contact with such persons, then this really becomes much stronger evidence that we are seeing community to community spread."

VOA: standard.2009.05.14

The investigators had indeed stumbled on direct evidence of contact between Kawamoto and a Hewlett-Packard director.

NEWYORKER: The Kona Files

The committee has appealed for members of the public with related evidence to contact them.

BBC: Guernsey States confidential deal to be reviewed

"We see fatalities in the field where there's no evidence of contact with any part of the interior, " says Saeed Barbat, who runs Ford Motor's passive safety engineering department.

FORBES: Magazine Article