英文關鍵字
animal
animation
bacterium
catastrophe
cause
cold
continent
death
disease
drugs
earth
end
epidemic
flu
globe
growing
health
illness
infection
life
medicine
microbe
moving
outbreak
pandemic
people
pollution
spread
virus
world
英文關鍵字
animal
animation
bacterium
catastrophe
cause
cold
continent
death
disease
drugs
earth
end
epidemic
flu
globe
growing
health
illness
infection
life
medicine
microbe
moving
outbreak
pandemic
people
pollution
spread
virus
world