hemisphere
noun
ˈhemɪəsfɪə
noun
1
a
half
of
the
earth,
especially
one
of
the
halves
above
and
below
the
EQUATOR
〔地球的〕半球〔尤指北半球或南半球〕
the
Northern
hemisphere
北半球
2
one
of
the
two
halves
of
your
brain
〔大脑的〕半球
3
half
of
a
SPHERE
(=an
object
which
is
round
like
a
ball)
〔球体的〕一半，半球