英文關鍵字
2019ncov
action
activist
aggression
air
city
coronavirus
covid19
crowd
employee
environmental
epidemic
event
filter
fist
flu
human
infectious
korea
korean
march
mask
medical
megaphone
outdoor
pandemic
people
political
pollution
portrait
problem
protected
protection
protest
protester
protestors
rally
requirement
resistance
revolt
rights
riot
screaming
shouting
smog
street
strike
student