rock-like mass

例句：

1. 1.The geologist found a rock-like mass in the riverbed.
   地质学家在河床上发现了一个岩石状物体。
2. 2.The rock-like mass was covered with moss and algae.
   这个岩石状物体被苔藓和藻类覆盖着。
3. 3. The rock-like mass was so heavy that it could not be moved by hand.
   这个岩石状物体太重了，无法用手移动。