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

• A fence marked the perimeter of the field.
  一道篱笆标明了那块田地的周界。
• 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。
• This is phoenix. we've reached the perimeter.
  我是菲尼克斯。我们靠岸了。
• And LAPD has the perimeter?
  lapd已经将其包围了？
• The plane veered off the runway and careered through the perimeter fence
  飞机突然偏离跑道，高速冲过了周围的护栏。
• 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。
• They ended up ripping down perimeter fencing and tussling with the security staff
  最终他们拆毁了四周的围栏，与保安人员厮打起来。
• He took some perimeter shots, but his jumping was restricted.
  他只是做了一些投篮的练习，但是跳动受到限制。
• Perimeter columns and flat plate floor construction complete the system.
  边界柱和楼板完成了这个系统。
• Somebody said a boat breached the perimeter.
  有人说一艘船突破了警界线。