英文關鍵字
blue
boil
bulb
change
chemical
chemistry
clinic
color
colorful
coronavirus
covid
examine
flask
foam
glass
invent
invention
jar
lab
laboratory
liquids
medical
nuclear
pandemic
reaction
red
research
scientific
smoke
test
vaccine
yellow
英文關鍵字
blue
boil
bulb
change
chemical
chemistry
clinic
color
colorful
coronavirus
covid
examine
flask
foam
glass
invent
invention
jar
lab
laboratory
liquids
medical
nuclear
pandemic
reaction
red
research
scientific
smoke
test
vaccine
yellow