The problem is, the Internet is a republic; which means that the most exalted content has to muck in with everything else that's out there.

但问题在于，互联网具有着公共的属性，这意味着最为菁华的内容往往混同在不引人注目内容之中。

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Users muck around with environments in unpredictable ways, and getting them back time to a stable state is often tricky.

当用户以一种不可预期的方式将环境搞坏时，使他们回到稳定时的状态通常是明智的。

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Non-profit bosses tend to muck in with volunteers when the heat is on (you'll find them, for example, helping to stuff goody bags for fund-raising events).

ECONOMIST: Schumpeter

The weather was gray again, with muck in the sky from the Pearl River Delta factories.

FORBES: Travel Log

In 2005 doctors in Australia noticed that surfers with cystic fibrosis had a lot less muck in their lungs.

FORBES: Magazine Article