在修复期间，几根古老的屋顶木材，包括关键的椽子和一条中央檩条，不得不被更换。

During the restoration, several of the ancient roof ___timbers, including key rafters and a central purlin, had to be replaced.

该地区的许多传统建筑都是木结构的，裸露的木框架作为一种装饰特色。

Many traditional buildings in the region are ___timber-framed, with the wooden structure left exposed as a decorative feature.

从外面看，那座旧木屋显得破败不堪，但其内部却出人意料地坚固且维护良好。

From the outside, the old ___timber house looked dilapidated, but the interior was surprisingly solid and well-maintained.