您要查找的是不是：
- big underground cavity 地下大型洞室
- There is a big underground parking lot. 地下有个很大的停车场。
- There is a big underground railway system in London. 伦敦有庞大的地下铁路网。
- This is the biggest underground lake yet discovered. 这是迄今已发现的最大的地下湖。
- Some rock is too weak to allow the development of large underground cavities. 一些岩石太脆弱了，不允许发展大面积的地下洞穴。
- B Yes, it is better. London has a bigger underground, or metro system. 是的，好一些。伦敦的地铁系统要大一些。
- complex underground cavity group 复杂地下洞室群
- underground cavity of arbitrary shape 地下任意形状洞室
- Being the country's oldest and biggest underground defense facility, the passage is also known as the Underground Great Wall. 作为全国范围内的最古老和最大的地下防御设施，这个地道又被称为“地下长城”。
- Correlation Theory on Environment Design of Underground Cavity 地下空间环境设计的有关理论
- Research on surrounding rock unloading of underground cavity 地下洞室围岩的卸荷研究
- Our firm is likely to reap a big profit this year. 今年我们公司很可能获得巨额利润。
- Fire System Design of Big Underground Car Parking Lot 大型地下停车库消防设计
- Yes, you have a big cavity there. 你有一个大大的蛀牙洞。
- That little bop made away with the big pie. 小男孩把大馅饼吃光了。
- The big dog leapt up at the little girl. 那条大狗跳起来朝小女孩扑去。
- Edward is the big daddy of our golf club. 爱华德是我们高尔夫球俱乐部里的重要人手。
- The big car purred along the road. 那辆大汽车一路呜呜地开了过去。
- Small shop is crowded out by the big supermarket. 小商店受到大型超级市场不断排挤。
- A big ship ploughed the sea at full sail. 一艘大船张满帆在海面上破浪前进。
