英文關鍵字
adult
book
bored
boring
boy
child
childhood
education
elder
elderly
explaining
feeling
generation
grandchild
grandchildren
grandfather
grandkid
grandpa
grandparent
grandson
help
helping
home
homework
kid
knowledge
learning
leisure
male
man
old
pensioner
people
pressure
pupil
read
reading
relationship
retirement
school
senior
sharing
subject
support
system
teacher
teaching
together
two
young