perimeter
UK [pə'rɪm.ɪ.tər] US [-'rɪm.ə.tˌɚ] noun countable
■the outer edge of an area of land or the border around it 周边，边缘•Protesters cut a hole in the perimeter fence.抗议人士在周围的栅栏上破开了一个洞。 •A river runs along one side of the field's perimeter.有条河沿这片田地的一侧流过。 specialized
■the length of the outer edge of a shape 周，周长 |