buried surface

例句：

1. 1. The team spent hours digging through the buried surface to find the lost treasure.
   团队花了数小时挖掘埋藏的表面，寻找丢失的宝藏。
2. 2. The river had cut a deep burial surface in the rocky terrain.
   河流在岩石地形中切出了一个深埋的表面。
3. 3. The engineer carefully removed the burial surface layer before starting the excavation.
   工程师小心地移除了埋藏的表面层，然后开始挖掘。