英文關鍵字
alternative
blueprint
building
business
businessman
caucasian
cell
clean
collector
collectors
concept
construction
cooperation
development
ecological
ecology
electric
electrical
electrician
electricity
energy
engineer
engineering
environment
environmental
foreman
generation
green
hand
happy
holding
house
industry
innovation
male
man
manager
modern
panel
photovoltaic
plan
planning
power
professional
renewable
shake
sky
solar
space
station
sun
sustainable
team
technology
worker
working