元となった辞書の項目
jewel box
noun
意味（2）
意味（3）
(baseball)
A
member
of
the
second
major
generation
of
professional
ballparks,
built
between
1909
and
approximately
1940
and
distinguished
by
a
relatively
compact
layout,
the
use
of
steel
and
reinforced
concrete
as
structural
materials
rather
than
wood,
and
the
presence
of
one
or
more
close-in
upper
decks
of
seating
supported
by
pillars
extending
from
the
lower
deck.
