機器
action
aid
assistance
auto
automobile
bad
bin
broken
builder
car
cargo
clay
container
danger
dangerous
difficult
dirt
dirty
engine
exploration
full
ground
hard
heavy
industries
industry
lorry
metal
mud
muddy
offroad
power
recycle
removal
renovating
risk
road
rough
service
site
steel
street
stuck
terrain
transportation
truck
urban
vehicle
wheel