英文關鍵字
2019ncov
biohazard
biology
camera
care
caucasian
chemical
chemistry
clinic
corona
coronaviridae
coronavirus
covid19
danger
disease
epidemic
eye
face
filters
flu
gas
glass
gloves
health
illness
infection
isolated
looking
man
mask
medic
medical
medicine
microbiology
ncov
pandemic
portrait
prevention
professional
protection
protective
quarantine
science
scientist
sick
splinters
sterilized
virus
wear
work
worker