WHAT ARE THE CHARACTERISTICS OF MODERN TUNNEL CONSTRUCTION?
- PhilomelLv 71 month ago
Hole in/ Hole out. Hole lotta work.
- JosephLv 71 month ago
Really. You want us to take information that would fill dozens of books and distill it into less than 10,000 alphanumeric characters?
- charlatanLv 71 month ago
at least one entry and one exit
- ?Lv 71 month ago
A big hole under the ground that goes from one place to another