1 a circle where several roads meet, that all the traffic has to go round in the same direction 环形交叉路口；（道路交会处的）环行道
2 a round platform made for children to play on. They sit or stand on it and sb pushes it round. 旋转木马 ☞picture at swing 见swing插图
3 =MERRY-GO-ROUND
roundabout²
/ˈraʊndəbaʊt ||; ˈraυndəˌbaυt/adj longer than is necessary or usual; not direct 绕道的；迂回的: We got lost and came by rather a roundabout route.我们迷了路，绕了远路才到。