In places, the nodes have many connections with their neighbours, but the network also contains random and often long links between nodes that are very far away from one another.

在某些地方，节点有很多与他们邻居的联系，但是网络同时也包含了随机性，而且经常在两个节点间有长距离的连接。

youdao

But it also spreads out the risk of pollution over a very long period.

但是这样一来也大大延长了可能造成污染的时间。

youdao

That may sound like a good thing because it reduces methane emissions and leachate. But it also spreads out the risk of pollution over a very long period.

垃圾不降解这可以降低沼气的产生听起来这似乎是个好事情，但却大幅延长了污染风险存在的时间。

youdao

But also, very long issues with the foreign presence here, and the foreign troops especially have to always be aware of that and always tread very carefully.

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"First, they are very narrow, but they are also very long, " explains Avouris.

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But United also says that not all very long-haul routes merit first-class service.

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