英文關鍵字
activism
background
campaign
caucasian
change
city
climate
crisis
danger
demonstration
earth
eco
ecology
environment
future
global
government
green
movement
nature
outside
people
placard
planet
political
pollution
portrait
poster
prevention
protection
protest
save
school
sign
single
slogan
street
strike
pupils
care
student
teen
teenager
responsibility
understanding
fear
purity
weapons
girl