英文關鍵字
20s
adult
bright
caucasian
chatting
cheerful
female
four
friends
friendship
globe
happy
homework
joyful
lapse
learning
male
man
map
peaceful
people
room
serious
smiling
speaking
students
studying
table
talking
time
together
woman
working
world
young
home
school
schooling
stay
social
distancing
quarantine
self
isolation
real
pandemic
distance
lock
down
coronavirus
covid19
covid