英文關鍵字
background
biology
blood
cells
china
clinic
clipboard
concept
contagious
corona
coronavirus
diagnosis
diagnostic
disease
doctor
epidemic
facial
flu
gloves
hands
health
holding
human
illness
infection
influenza
man
mask
medical
medicine
microbe
microbiology
ncov
pandemic
professional
protective
red
research
science
sickness
sign
slogan
stop
suit
symptom
treatment
viral
virus