英文關鍵字
boy
cheerful
child
childhood
children
cute
day
enjoyment
entertainment
face
grandparents
hand
happiness
holiday
joy
keep
kid
leisure
little
looks
male
out
outside
person
platform
play
railroad
rapid
recreation
relaxation
response
ride
russia
saintpetersburg
slowmo
son
stand
tourism
tourist
train
travel
trip
urban
vacation
visit
waving
window
young