“外围的”的英语？

社区领导想要加强对小区外围的管理。Community leaders want to strengthen controls at external frontiers.身穿防暴服的警察正在包围外围的栅栏。Officers dressed in riot gear are surrounding the perimeter fence.我是来自外围的圈子,是用英语来写作的.I am , then, from the outer circ...