The building was reduced to a heap of rubble.

大楼变成了一片残垣断壁。

《牛津词典》

After the bombing her house was just a heap of rubble.

爆炸后她的房屋成了一堆瓦砾。

youdao

I found one of the most famous churches of Kiev a heap of rubble.

我发现基辅最出名的教堂之一已成为一片废墟。

youdao

Like many another despot, Mr Milosevic probably prefers to preside over a heap of rubble than not to preside at all.

ECONOMIST: Victim of Serbia--or NATO?

The second hypothesis is that Mathilde is much hollower than she appears, making her more a floating heap of rubble than a solid rock.

ECONOMIST: Asteroids