英文關鍵字
absorbing
absorbs
activity
background
bunch
business
composed
composition
concept
conservation
design
ecological
electrical
electronics
energy
english
equipment
fuel
generate
generator
global
gray
hands
hydro
idea
industrial
innovation
intake
language
letters
life
man
modern
nuclear
people
picking
power
production
resource
saving
standing
table
technology
turbine
type
typography
uptake
vigor
white
word