crushing of rail head

例句：

1. 1.The car was crushed by the heavy truck.
   汽车被重型卡车压扁了。
2. 2.The mountain was destroyed by avalanche.
   山被雪崩摧毁了。
3. 3. The building was demolished for redevelopment.
   为了重新开发，这座建筑被拆除了。