几代同堂大家庭的赡养关系网。

The supportive network of the extended family.

社会不象学校，它关系网错综复杂。

Unlike school, society has complicated relationship.

他变成老同学关系网的中点。

On the old boys' network, he had become a central node.

他在美国的关系网直指最高决策者。

In America his connections ensured a direct line to top decision-makers.

他们的关系网的确给出了一些警告信号，但并不足以使他们曲突徙薪。

Their networks of contacts did throw up a few warnings, but not enough to prompt timely action.