英文關鍵字
backhoe
building
bulldozer
business
connection
construction
culvert
delivery
development
direction
drain
drainage
engineering
environment
equipment
grass
industrial
industry
irrigation
landscape
logistic
logistics
machine
metal
nature
outdoor
people
pipe
rail
railway
safety
sand
sewage
sewer
site
sky
structure
technology
tool
track
traffic
train
transit
transport
transportation
truck
waterway
way
work
worker