??
life
????
to be born
???
birthday
????/???
baby
???
kindergarten
???
day care center
???
elementary school
???
middle school
??
high school
??
elementary/middle/high school student
??
two year college
??
education
??
school entrance
??
graduation
??
young
???
minor
??
getting a job
??
single
??
marriage
??
divorce
??
middle age
??
retirement
??
elderly person
????
to grow older
?
death