英文關鍵字
attention
books
boy
caucasian
child
children
concern
difficult
family
growing
hair
handle
hard
head
home
homework
house
independent
letter
lie
methodology
notebook
oneself
perseverance
prepares
room
school
schoolboy
selfstudy
shakes
sitting
stretches
study
table
tiredly
training
unaided
up
work
writes