英文關鍵字
action
city
clean
closeup
collection
collector
community
conditions
container
disposal
driver
dump
dumptruck
ecological
environment
environmental
equipment
garbage
industrial
industry
man
municipal
neighborhood
pickup
recycle
recycling
red
refuse
rubbish
sanitation
scrap
seasons
service
services
snow
street
transport
transportation
trash
truck
urban
vehicle
waste
weather
winter
work
worker
workers