英文關鍵字
adult
beaker
biochemistry
calculation
caucasian
checking
chemical
chemist
chemistry
coat
equation
examining
glasses
lab
laboratory
life
liquids
male
man
math
mathematics
medical
medicine
microscope
mid
molecular
office
one
person
pipette
placing
protection
putting
safety
science
scientific
structure
study
tech
test
testing
tubes