Ce sont les mots les plus souvent utilisés dans ce livre.
already
american
among
another
between
certain
change
children
come
different
education
environment
even
example
experience
fact
family
far
find
first
form
future
group
help
home
however
human
ideas
images
individual
industry
ing
itself
job
less
level
life
lives
long
man
mass
may
men
merely
might
move
must
need
new
now
number
old
once
organization
others
own
pace
part
past
people
place
possible
present
problems
process
product
rate
relationships
school
sense
set
short
should
social
society
states
still
structure
students
style
system
take
technology
terms
things
thus
time
tion
today
toward
turn
two
united
values
words
work
world
years
yet
young