The old building had an intangible air of sadness about it.

那座旧建筑笼罩着一种说不出的悲凉气氛。

This beautiful old building has been restored to its former glory.

这座美丽的老建筑物已恢复了昔日的壮观。

It's an old building, but that doesn't qualify it as an ancient monument!

这是一座老建筑，但不足以称为古迹。

The old building will be replaced, most probably by a modern sports center.

这栋古老的建筑物将最有可能被一个现代运动中心所替代。

It was rebuilt on the site of the old building.

它是在原来建筑物的旧址上重新建造的。