英文關鍵字
agriculture
baby
background
care
child
concept
conceptual
dad
development
ecology
elderly
energy
environment
environmental
family
father
girl
give
global
green
grow
growing
growth
hand
happiness
holding
human
idea
leaf
life
love
man
nature
old
outdoors
person
plant
plantation
power
preservation
save
senior
soil
solar
spring
summer
symbol
take
tree
young