perimeter

英 [pəˈrɪmɪtə(r)]

美 [pəˈrɪmɪtər]

n.  (土地的)外缘，边缘; 周长

复数：perimeters　

CET6TOEFLIELTSGRETEM8医学

Collins.1 / BNC.8620 / COCA.6584

牛津词典

noun

• （土地的）外缘，边缘
  the outside edge of an area of land
  1. Guards patrol the perimeter of the estate.
     保安人员在庄园四周巡逻。
  2. a perimeter fence/track/wall
     围绕四周的栅栏 / 小径 / 墙
• 周长
  the total length of the outside edge of an area or a shape

柯林斯词典

• N-COUNT 外缘；边缘
  Theperimeterof an area of land is the whole of its outer edge or boundary.
  1. ...the perimeter of the airport...
     机场四周
  2. Officers dressed in riot gear are surrounding the perimeter fence.
     身穿防暴服的警察正在包围外围的栅栏。

英英释义

noun

• the size of something as given by the distance around it
  Synonym:circumference
• a line enclosing a plane areas
• the boundary line or the area immediately inside the boundary
  Synonym:marginborder

双语例句

• After that I opened the East perimeter fence.
  之后，我打开了东面的围墙。
• We have established a perimeter around the airport.
  我们在机场附近设好了防线。
• This is phoenix. we've reached the perimeter.
  我是菲尼克斯。我们靠岸了。
• Perimeter columns and flat plate floor construction complete the system.
  边界柱和楼板完成了这个系统。
• Under perimeter IP list and internal IP range configuration, click add.
  在“外围ip列表和内部ip范围配置”下，单击“添加”。
• A fence marked the perimeter of the field.
  一道篱笆标明了那块田地的周界。
• Bill, I need you to set up a perimeter around his house.
  比尔，我要你在他家附近设置警戒圈。
• By night, the perimeter wire was illumined by lights.
  到了夜里，周遭的铁丝网都被灯光照亮。
• The barbed wire fence round the perimeter discouraged intruders.
  周围有铁丝网阻止了外人闯入。
• To further understand the concept of a circle, distinguish the perimeter and the area of a circle.
  进一步熟记圆的概念，区分圆的周长和面积。