然而，互联网的庞大系统使得一旦事情被散布到许许多多的服务器上，阻止事情的传播或者摧毁它就基本上不可能。
The vast nature of the Internet, however, makes it essentially impossible to stop something, or take it down, once it has gone out over multiple servers.
还有人担心，任何钻探都可能导致石油泄漏，而散布在北极破碎的海冰中的石油不可能清理干净。
There are also fears that any drilling could lead to oil spills which would be impossible to clean up amid the Arctic's broken sea ice.
在过去的两年里，森林保护组织的巧妙宣传活动已经成功地散布了这样的思想：在任何关于地球未来的严肃认真的考虑中，森林都是不可忽视的。
Over the past two years, skilful campaigning by pro-forest groups has successfully disseminated the idea that trees cannot be ignored in any serious deliberation on the planet's future.
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