If you could not find any Chinese words/phrases for your art design
Please contact with Andres Leo, he will try his best to translate and create a proper version for you.
The standard version is PNG transparent background format, with serval calligraphic fonts for art design.
The special service fee is $10 for one phrase, Please contact Andres Leo: firstname.lastname@example.org
beneath the surface of the ground;
underground activity is secret and usually illegal
see another keyword links:
dig a hole
boring underground tunnel
mass rapid transit
an urban public transit system
using underground or elevated trains