然而，P 2 P网络规模大，节点动态性强，交易的节点大多为陌生节点，节点间缺乏必要的信任关系，安全问题十分突出。

However, a P2P system is large in scale, whose component nodes are dynamic, strange to each other and lack of necessary mutual trust. The security issues are very serious in P2P system.

youdao

购买大啤酒厂带来的规模效应，可以抵消啤酒厂和销售网络的高昂的固定成本。

Buying large brewers brings the volume needed to offset the high fixed cost both of breweries and distribution networks.

youdao

所以电子邮件这样的社交网络将完全可能没办法挣一大笔钱社交网络会像电子邮件一样完全没办法实现大规模盈利。

So it is entirely conceivable that social networking, like web-mail, will never make oodles of money.

youdao