機器
abutment
architecture
automobile
automobile bridge
bridge
building
cement
column
columns
concrete
connection
construction
design
development
drive
elevated
engineering
expressway
flyover
freeway
high
highway
industry
infrastructure
interchange
modern
natural
nobody
object
outdoor
overpass
perspective
pillar
pillars
prop
road
roadway
route
structure
support
traffic
transport
transportation
travel
under
urban
view