利用する
broken
business
cargo
clear
copy space
crane
crush
damaged
day
dump
ecology
environment
garbage
grab
heap
hoisting
industrial
industry
junkyard
landfill
mechanical
mechanism
metal
nobody
old
outdoors
part
pile
pollution
recycle
recycling
reduce
reuse
rust
safe
scrap
scrapyard
site
sky
stack
steel
summer
tractor
waste
wreck
yellow