英文關鍵字
common
usa
technology
clean
house
power
rooftop
hightech
investment
sustainable
panels
typical
pool
renewable
housing
america
solar
electric
residential
generator
electrical
energy
retirement
photovoltaic
supply
dwelling
autonomous
building
alternative
cells
ecological
batteries
suburban
fuel
source
future
home
roof
property
efficiency
electricity
classical
neighborhood
family
green