downthrown block

例句：

1. 1. The old building was downthrown to the ground during a storm.
   暴风雨期间，这座老建筑被倒塌了。
2. 2.The engineer carefully examined the downthrown block for signs of damage.
   工程师仔细检查那个倒塌的块状物，寻找损坏的迹象。
3. 3. The downthrown block was a valuable piece of historical evidence.
   这个倒塌的块状物是一份宝贵的历史证据。