A-road
noun
ˈeɪrəʊd
noun
1
a
type
of
road
in
Britain
that
is
smaller
than
a
MOTORWAY
,
but
larger
than
a
B-ROAD
A
级公路，（主干）公路〔英国的一种公路，小于高速公路但大于 B 级公路〕