n.[C]

1. 马戏团；马戏表演
   She took the children to the circus.

   她带孩子们去看马戏。

2. 马戏表演场
3. （古罗马的）露天圆形竞技场
4. 【英】圆形广场；环形交叉口
5. 【贬】吵闹的活动（会议、地方等）

n.

1. a travelling company of acrobats, clowns, and other entertainers which gives performances typically in a large tent.
2. (in ancient Rome) a circular or oval sporting arena lined with tiers of seats.
3. informal a scene of lively activity.
4. Brit. a circular open space in a town where several streets converge:
   Piccadilly Circus.