英文關鍵字
acid
bacterium
beautiful
biology
blue
bulb
chemical
chemistry
closeup
color
colorful
connect
discovery
dissolve
doctor
dripping
drug
effect
equipment
experiment
ferment
flask
glass
inside
lab
laboratory
liquid
magic
medical
medicine
microbiology
mix
mixing
organic
paint
piece
poison
reaction
reagent
red
research
sample
science
scientific
solution
sterile
substance
transparent
tube
water