rock surrounding a tunnel的用法和樣例：
例句
- The classification of rock masses is in the base of tunnel design and construction.
隧道圍岩地質類別的判別是進行隧道支護和施工的基礎。 - Long time surface water supply by permeation causes surrounding rock being saturated all the time, to soften up the rock.
長期的地表水滲透補給導致隧道圍岩一直處於飽水狀態，逐漸使部分岩石軟化。
