因为w3c常提及的“语义web”得到了扩展，所以联机服务说明可以从所有必须以评价和信任的网络形式提供的RDF中受益。
As the W3C's oft-mentioned "semantic web" expands, on-line service description could benefit from all that RDF has to offer in the form of networks of rating and trust.
语义覆盖网络可扩展性好，但要么难以组织，要么维护开销很大。
Contrastively, semantic overlay network is scalable but either is difficult to organize or take too large maintenance spending.
XML（可扩展性标记语言）不仅支持自定义标记，还能表达语义，因而为提高网络搜索的准确性提供了可能。
The extensible markup language (XML) supports the mark that is defined by users and can express semantics, which makes it possible to improve the accuracy of searching on the Interact.
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