wind power
風力
3四分の一の長さ
alternative energy
balance
bicycle
bonding
both male and female
boy
carefree
carte blanche
caucasian ethnicity
change
changes
childhood
commitment
conscientious
copy space
creativity
cycling
day
elementary age
energy
enjoyment
environment
environmental conservation
environmental issue
freedom
full length
fun
green living
happiness
harmony
journey
leisure
mature adult
mother
nature
on the go
outdoors
power
power concept
power industry
recreation
renewable energy
resourceful
responsibility
sea
side view
smiling
son
the way forward
togetherness
transport
travel
two people
wind
wind turbine
woman