microwave
加入词篮potential
conductor
pressure
stress
friction
mass
stay
ecology
variety
energy
power
environment
conservation
protection
wildlife
pollution
lead
smog
waste
evolution
primitive
civilization
civilization
culture
self-respect
respect
spear
bow
arrow
stick
origin
tradition
antique
dig
ruin
sacrifice
language
idiom
accent
pronunciation
phone
stress
word
alphabet
initial
spelling
spell
vocabulary
root
meaning
dictionary
identification
outline
material
thing
phenomenon
phenomena
essential
fundamental
basic
basement
nature
basis
form
existence
being
theory
sense
feeling
feel
practice
object
subject
system
significance
main
chief
importance
grand
statistics
opposite
abnormal
normal
truth
fact
if
assumption
reason
cause
conclusion
consequence
result
outcome
incident
matter
thought
thinking
thinker
part
