英文關鍵字
no
people
animation
social
distancing
school
children
hand
syringe
global
medicine
healthcare
pandemic
digital
interface
concept
video
digitally
generated
distance
safety
protection
prevention
health
epidemic
outbreak
technology
graphic
background
design
illustration
creative
artwork
motion
symbol
icon
care
medical
vaccine
precaution
covid19
coronavirus
injection
education
isolation
quarantine
disease
spread
awareness
caution