形容词

1. （交通）环岛;环形交叉路口
A roundabout is a circular structure in the road at a place where several roads meet. You drive round it until you come to the road that you want.

1. a large, rotating machine with seats for children to ride or amusement

Synonym: carouselcarrouselmerry-go-roundwhirligig

2. a road junction at which traffic streams circularly around a central island

e.g. the accident blocked all traffic at the rotary

Synonym: traffic circlecirclerotary