ozone-friendly
加入词篮ozone layer
ozone hole
heavy metal
lead
plumbism
mercury
cadmium
stack
smokestack
smog
exhaust
fume
fumes
fumigate
fumigation
waste
waste water
waste gas
waste product
waste disposal
anthropology
anthropologist
anthropoid
anthropological
ethnic
ethnical
ethnically
ethnicity
ethnic cleansing
ethnography
ethnographic
ethnographer
ethnocentric
ethnocentrism
ethnology
ethnologic
ethnological
ethnologist
eugenics
eugenic
eugenist
tribe
tribalism
tribal
tribesman
tribeswoman
aboriginal
aborigine
native
aboriginally
initially
ancestral
ancestry
scion
forerunner
clan
ape
apish
anthropoid
ape man
evolution
evolve
evolutionary
evolvement
mutation
mutate
mutant
mutable
mutability
unstable
shaky
hybrid
half-breed
mongrel
crossbreed
primitive
primordial
primeval
primitiveness
primal
prehistoric
prehistory
prehistoric man
pristine
prehistorical
civilize
civilization
civility
uncivilized
civilized
civilisation
civilization
civilise
cultural
multicultural
culture
respectful
