機器
adult
analyser
analyzer
analyzing
biochemistry
biotechnology
caucasian
chemist
chemistry
clinic
doctor
equipment
glasses
investigation
lab
laboratory
laboratory assistant
male
man
medical
medical gown
medicine
microbiology
monitor
parser
people
person
profession
professional
research
researcher
science
scientific
scientist
screen
technician
technology
test
test tubes
tester
touching
two
white
woman
working