swimming
is
one
of
the
best
form
of
excercise
whereby
almost
every
parts
of
the
body
musles
are
utilized.
before
you
go
into
a
pool
for
swimming
lesson,
every
learner
must
have
the
confident
of
entering
into
a
swimming
pool.
the
first
lesson
is
therefore
called,
'confident
drill'
to
start
the
learning
of
swimming,
all
learners
are
to
do
warm
up
on
land
and
know
the
safety
rules
in
a
swimming
pool.
floats
and
proper迹饥管渴攮韭归血害e5a48de588b662616964757a686964616f31333433616135摩
swim
wear
are
necessities
for
a
learner..
there
are
four
types
of
swimming
styles.
they
are
front
crawl,
breaststroke,
backstroke
and
butterfly.
swimming
is
a
good
sport
that
should
be
popularized
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