1. In the eerie silence of the cavern. 洞里有一种可怕的寂静。
2. To what extent? Impossible to say. The obscurity was more dense there than elsewhere. It was a pit of mire in a cavern of night. 塌陷的地方究竟有多长？这无法说清。黑暗在这儿比任何地方都深厚，这是夜之洞穴中的一个泥坑。
3. The mesh dissection of finite element calculation of underground cavern is an important factor of affecting the whole calculation progress and quality. 地下洞室有限元计算的网格剖分是影响整个计算工作进度和质量的重要因素。
英英解释
n.
1. any large dark enclosed space
2. a large cave or a large chamber in a cave v.
1. hollow out as if making a cavern
