underground
adj
adv
noun
ˈʌndəɡraʊnd
adj
1
below
the
surface
of
the
earth
地下的
an
underground
passage
地下通道
The
car
park
is
underground.
停车场在地下。
2
an
underground
group,
organization
etc
is
secret
and
illegal
〔组织、机构等〕地下的，秘密的，不合法的
only before noun 仅用于名词前
an
underground
terrorist
organization
秘密恐怖主义组织
3
underground
literature,
newspapers
etc
are
read
by
a
small
number
of
people,
and
would
seem
slightly
strange
or
shocking
to
most
people
〔文学作品、报纸等〕地下的
only before noun 仅用于名词前
the
underground
press
地下报刊
ˌʌndəˈɡraʊnd
adv
4
under
the
earth’s
surface
在地（面）下
This
animal
spends
most
of
its
life
underground.
这种动物一生中的大部分时间都呆在地下。
nuclear
waste
buried
deep
underground
深埋在地下的核废料
5
go underground
to
start
doing
something
secretly,
or
hide
in
a
secret
place
转入地下; 隐匿
The
ANC
was
forced
to
go
underground
when
its
leaders
were
arrested.
领导人被捕之后，非洲国民大会被迫转入地下。
ˈʌndəɡraʊnd
noun
6
the Underground
a.
a
railway
system
under
the
ground
b.
an
illegal
group
working
in
secret
against
the
rulers
of
a
country
〔反政府的〕地下组织，秘密团体
BrE AmE