| 释义 |
per·im·eterBrE /pəˈrɪmɪtə(r)/NAmE /pəˈrɪmɪtər/ nounthe outside edge of an area of land （土地的）外缘，边缘◆Guards patrol the perimeter of the estate. 保安人员在庄园四周巡逻。◆a perimeter fence/track/wall 围绕四周的栅栏/小径/墙(mathematics 数学) the total length of the outside edge of an area or a shape 周长 ➡ compare circumference |