英文關鍵字
authentic
authenticity
cat
caucasian
chat
communication
computer
coronavirus
covid19
disease
document
electronic
employed
employee
epidemic
flu
freelancer
guy
home
information
internet
isolation
man
mask
medical
monitor
network
nose
online
pandemic
people
protective
puts
quarantine
real
remote
runny
self
sick
sneezes
social
table
training
virus
web
work
working