英文關鍵字
agriculture
break
burst
conservation
conserve
crisis
damaged
drop
drought
dry
environment
equipment
fire
firefighter
fixture
flame
flat
flow
flowing
forest
garden
grass
handle
hardware
hole
hose
industrial
industry
irrigation
leak
leakage
leaking
liquid
loss
maintenance
outdoor
pipe
piping
plumb
plumbing
pressure
problem
repair
rupture
splashing
spray
spraying
summer
supply
tube
tubing
waste
wasteful
water
waterworks
wet