最終更新日:2022/12/24
The greater exposure to danger which these more adventurous spirits encountered and the constant struggles that these semi-human creatures must have had with definite enemies no less than with the forces of nature provided factors which rapidly weeded out those unfitted for the new conditions, and by natural selection made real men of the survivors.
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元となった例文
The
greater
exposure
to
danger
which
these
more
adventurous
spirits
encountered
and
the
constant
struggles
that
these
semi-human
creatures
must
have
had
with
definite
enemies
no
less
than
with
the
forces
of
nature
provided
factors
which
rapidly
weeded
out
those
unfitted
for
the
new
conditions,
and
by
natural
selection
made
real
men
of
the
survivors.