英文關鍵字
battery
recycling
pollution
ecology
alkaline
trash
waste
recharge
energy
used
electricity
technology
industry
background
environment
charge
garbage
electric
rechargeable
supply
old
macro
element
accumulator
exhausted
recycle
group
problem
many
collection
contaminated
dangerous
toxic
cylinder
industrial
danger
pile
rubbish
rotation
contaminate
circle