bin
bottle
boy
child
children
class
classroom
clean
cleaning
climate change
conversation
e learning
eco
eco friendly
education
friend
future
green
growth
health
healthy
help
helping
kid
kids
kindergarten
learn
learning
natural
people
person
plastic
recycle
recycling
room
school
sitting
social
student
students
studying
sustainable
teacher
throwing
together
training
trash
woman
young
youth
定額
Teacher, recycle bin and kid in classroom throwing trash for cleaning, climate change or eco friendly in school. Recycling plastic, sustainable learning or education with boy student in kindergarten.の素材 [FY310201200428]
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