| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | tunnel construction | China | Tunnel construction is often associated with major infrastructure projects and high-speed rail networks. | 1 |
| 2 | tunnels | China | Tunnels are also common for transportation, but they are also associated with traditional infrastructure, such as tunnels through mountains and for high-speed trains. | 1 |
| 3 | underground area | China | Underground malls and shopping areas are popular, providing relief from hot weather and crowded streets | 1 |
| 4 | underground tunnels | China | Used for military defense and secret passages, especially in historical contexts | 1 |