英文關鍵字
abstract
bacteria
beginnings
biochemistry
biological
biology
biomass
care
cell
circle
cloning
close
closeup
concept
contagious
egg
emerge
evolution
fertility
float
floating
foam
fog
germ
hand
haze
illustration
life
macro
medicine
memento
memories
microbiology
microorganism
mist
organic
organism
origin
pregnancy
red
round
science
smog
smoke
sphere
surround
surrounding
symbol
up