英文關鍵字
hospital
vaccine
escalator
climbing
standing
coronavirus
boy
pandemic
mask
medical
teenager
cast
arm
hand
break
wearing
face
child
clinic
metro
elevator
epidemic
health
covid
19
protective
influenza
sick
infection
prevention
excavator
supermarket
cough
modern
kid
generation
interior
rails
passage
pneumonia
portrait
motion
inside
lifestyle
concept
urban
illness
automatic
staircase
walkway