英文關鍵字
alone
auto
boy
bus
child
childhood
commuter
contemplate
contemplation
cute
depressed
depression
dream
expression
face
feelings
hope
innocence
journey
kid
ling
little
lonely
look
male
miserable
one
passenger
people
person
riding
road
sad
sadness
schoolboy
thinking
thoughtful
transport
transportation
travel
trip
vehicle
view
window
wondering
young