metro
noun
ˈmetrəʊ
noun
1
a
railway
system
that
runs
under
the
ground
below
a
city
地下铁道系统,地(下)铁(道)
the
Paris
Metro
巴黎地铁系统
It’ll
be
quicker
to
go
on
the
metro.
乘地铁更快。
a
metro
station
地铁站