英文關鍵字
action
active
activity
boy
caucasian
child
childhood
countryside
dock
enjoying
enjoyment
forest
freedom
fun
green
happiness
happy
horizontal
joy
jump
jumping
lake
leisure
lifestyle
male
nature
outdoors
outside
people
person
playful
recreation
river
sky
summer
summertime
swim
teenager
water
wet
woods
young
youth