英文關鍵字
accident
admission
caution
chemical
coronavirus
danger
disease
doctor
door
empty
finger
flu
glove
handle
handling
hands
handsnadvertisement
handsnn
hazard
health
healthcare
helmet
home
hospital
house
illness
illustration
industrial
infection
interior
isolation
label
mask
medical
notice
open
pandemic
patient
precaution
prohibitedn
protect
protection
protective
restricted
risk
room
safe
safety
security
set
sign
sticker
wall
warning
warns
wear
welding
white