Usually, these enclosed stone or timber structures, though sometimes they encircled settlements.

通常情况下，这些围墙是由石头或木质结构组成的，尽管有时它们会围着定居点。

Once finished, this eight-storey office block will be the Copenhagen's largest timber structure.

完工后，这栋八层的办公大楼将成为哥本哈根最大的木结构建筑。

The same timber structures that would just a few months later feed a fire that threatened to destroy the whole cathedral.

就是同样的木结构在几个月后引发了一场大火，威胁着要摧毁整个大教堂。