there are alway sthree lights in every country:red,yellow and green.yellow light means“go”.in
问题描述：
there are alway sthree lights in every country:red,yellow and green.yellow light means“go”.in
there are alway sthree lights in every country:red,yellow and green.
yellow light means“go”.
in China,drivers drive on the right sude of the road.
in theUS,drivers drive on the left side.
if you go on foot,you don't have to know the traffic rules.
答
there are alway sthree lights in every country:red,yellow and green.yellow light means“go”.in China,drivers drive on the right sude of the road.in theUS,drivers drive on the left side.if you go on f...