英文關鍵字
2019ncov
air
anxiety
anxious
businessman
busy
caucasian
computer
coronavirus
covid
covid19
creative
disease
distance
education
epidemic
flu
freelance
home
illness
indoor
infection
influenza
internet
isolated
isolation
male
man
mask
media
ncov
novel
online
outbreak
pandemic
panic
person
protection
quarantine
respiratory
safe
self
selfisolation
sickness
social
studying
symptoms
virus