英文關鍵字
city
copy
corona
coronavirus
covid
danger
epidemic
face
female
gloves
green
greeting
hello
hygienic
illness
infection
infectious
influenza
mask
medical
medicine
nature
outbreak
outdoors
pandemic
people
person
pollution
portrait
prevent
prevention
protect
protection
protective
quarantine
responsibly
safety
say
showing
sick
space
trees
virus
walking
wear
wearing
woman