英文關鍵字
adult
alley
bench
black
caucasian
chatting
communication
coronavirus
covid19
disease
distance
distancing
epidemic
female
gadget
gloves
green
hat
hygiene
leaning
mask
measures
mobile
nature
outdoor
outfit
pandemic
park
people
person
phone
prevention
protective
quarantine
restriction
scrolling
smartphone
social
summer
technology
trees
typing
virus
white
woman