rubble
noun [ U ] uk/ˈrʌb.əl/ us/ˈrʌb.əl/
（房屋倒塌或被毁后留下的）瓦砾堆，碎砖烂瓦，碎石
the piles of broken stone and bricks, etc. that are left when a building falls down or is destroyed
The bomb reduced the house to rubble. 炸弹把这座房屋炸成了一堆瓦砾。
（建筑用的）石子，碎石，毛石
small pieces of stone or rock used for building