- 1.   
包围;环绕  -  
• the police ringed the building. 警察包围了这栋建筑物。 -  
• an old house ringed (about) with trees 林木环绕的古宅。 - 2.   
用圆圈标出,把…圈出  -  
• ring the mistakes in red 用红笔圈出错误的地方 - 3.   
给…带环,给(牲口等)套环  -  
• The old man and his grandson are ringing the pigeon. 那位老人和他外孙在给鸽子套腿环。