Question

perimeter n.周长；周界；边缘 (1) 请你算一算体育场的周长是多少米?(2) 卫兵沿机场四周巡逻。(3) 一道篱笆标明了那块田地的周界。(4) 周围有铁丝网阻止了外人闯入。(5) 四周都挖好了捕捉猎物的陷阱。 From Latin, meaning “around” (peri)and “measure” (metron), a perimeter is basically a boundary of any kind, measuring around the shape. In mathematics, perimeter refers to the length of this boundary. In geometry class, you might be asked to calculate the perimeter of a polygon, which is the sum of the length of each side. You might also hear this word used by members of the military or a police force as in “secure the perimeter” or “the perimeter has been breached.” A basketball player that likes to shoot from the three point line is said to “operate on the perimeter.”

Accepted Answer

英 [pə'rɪmɪtə(r)] 美 [pə'rɪmɪtər] (1) Work out how long the perimeter of the playground.(2) Guards patrolled the perimeter of the airfield.(3) A fence marked the perimeter of the field.(4) The barbed wire fence round the perimeter discouraged intruders.(5) Traps for predators were set around the perimeter. The noun perimeter refers to the border of an enclosed space. The perimeter of a house is its property line. For a country, it would be that country’s borders. 1[N-COUNT 可数名词]外缘；边缘 The perimeter of an area of land is the whole of its outer edge or boundary. ...the perimeter of the airport...机场四周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。

英语单词	perimeter
英美音标	英 [pə'rɪmɪtə(r)] 美 [pə'rɪmɪtər]
中文释义	n.周长；周界；边缘
英语例句	(1) Work out how long the perimeter of the playground. (2) Guards patrolled the perimeter of the airfield. (3) A fence marked the perimeter of the field. (4) The barbed wire fence round the perimeter discouraged intruders. (5) Traps for predators were set around the perimeter.
中文例句	(1) 请你算一算体育场的周长是多少米? (2) 卫兵沿机场四周巡逻。 (3) 一道篱笆标明了那块田地的周界。 (4) 周围有铁丝网阻止了外人闯入。 (5) 四周都挖好了捕捉猎物的陷阱。
vocabulary简明	The noun perimeter refers to the border of an enclosed space. The perimeter of a house is its property line. For a country, it would be that country’s borders.
vocabulary扩展	From Latin, meaning “around” (peri)and “measure” (metron), a perimeter is basically a boundary of any kind, measuring around the shape. In mathematics, perimeter refers to the length of this boundary. In geometry class, you might be asked to calculate the perimeter of a polygon, which is the sum of the length of each side. You might also hear this word used by members of the military or a police force as in “secure the perimeter” or “the perimeter has been breached.” A basketball player that likes to shoot from the three point line is said to “operate on the perimeter.”
柯林斯解释	1 [N-COUNT 可数名词]外缘；边缘 The perimeter of an area of land is the whole of its outer edge or boundary. ...the perimeter of the airport... 机场四周 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。

Perimeter Fence Refers Length Boundary 英 Pə'Rɪmɪtə(R)] 美 Pə'Rɪmɪtər