最終更新日：2025/12/30
例文
The
use
of
the
tube
is
to
protect
the
body
from
the
pressure
of
the
soft
mud
in
which
it
stands
immersed.
When
the
tube
is
overset
or
cast
out
by
the
waves
or
accident,
the
worm
leaves
it,
and
becomes,
in
its
turn,
exposed
to
enemies.
To
protect
itself
from
these
while
a
new
tube
is
being
secreted,
nature
has
amply
furnished
the
Sao
with
a
series
of
bristling
lances
on
each
side.
These
arms
are
of
exquisite
make,
very
fine
and
very
sharp;
and
those
of
the
upper
bundle
have
their
points
bent
and
inclined
towards
those
of
the
lower
bundle,
which
are
likewise
bent
to
meet
them.
復習用の問題
The use of the tube is to protect the body from the pressure of the soft mud in which it stands immersed. When the tube is overset or cast out by the waves or accident, the worm leaves it, and becomes, in its turn, exposed to enemies. To protect itself from these while a new tube is being secreted, nature has amply furnished the Sao with a series of bristling lances on each side. These arms are of exquisite make, very fine and very sharp; and those of the upper bundle have their points bent and inclined towards those of the lower bundle, which are likewise bent to meet them.
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