英文關鍵字
allergy
background
blue
care
cheese
clean
clinic
close
color
coronavirus
disease
disposable
doctor
epidemic
equipment
fabric
face
filter
flu
grated
hard
health
hospital
hygiene
illness
industry
infection
infections
influenza
isolated
light
mask
material
medic
medical
medicine
nobody
object
plate
pollution
prevent
prevention
protect
protection
protective
respiratory
safety
sick
sickness
single
surgery
surgical
virus
viruses
wear
white