英文關鍵字
architecture
away
blueprint
building
business
clean
communication
conservation
construction
control
dam
ecology
electric
electricity
energy
engineer
engineering
environment
equipment
female
generate
helmet
holds
hydroelectric
industry
job
lifestyle
looking
management
manager
mask
natural
nature
occupation
outdoor
portrait
professional
project
protective
purity
quality
reading
reservoir
river
safety
site
structure
supervisor
technology
uniform
vest
water
wearing
white
wireless
woman
work
working
yellow