rock mass

例句：

1. 1. The geologist is studying the rock mass beneath the mountain.
   地质学家正在研究这座山下面的岩石体。
2. 2. The engineer must carefully analyze the rock mass to ensure safety.
   工程师必须仔细分析岩石体以确保安全。
3. 3.The construction crew was forced to abandon the rock mass due to weathering.
   由于风化，建筑工人被迫放弃岩石体。