英文關鍵字
animation
biohazard
concept
coronavirus
danger
dangerous
digital
digitally
disaster
disease
epidemic
exclamation
fever
flu
generated
germ
health
human
idea
illness
illustration
infection
letter
mark
medical
message
microbiology
montage
motion
moving
no
organism
outbreak
pandemic
people
pollution
prevention
red
scare
science
sickness
sign
spreading
text
triangle
viral
virology
virus
warning