英文關鍵字
1080p
20s
30s
academic
adult
and
biochemist
biologist
biology
biotechnology
campus
caucasian
chemist
chemistry
coworkers
cold
colleagues
college
communication
conversation
dairy
definition
discussion
education
equipment
experiment
factory
female
food
gloves
hair
hd
healthcare
high
highdef
higher
industry
interacting
knowledge
lab
laboratory
machine
machinery
male
man
medical
medicine
mid
net
people
plant
processing
production
protective
refrigerator
research
safety
school
science
scientific
scientist
speaking
staff
storage
student
suit
talking
tank
team
technology
together
two
university
woman
young