💡 词根助记

peri周围，靠近+meter测量→测量一圈→周边

📝 例句

Drinks in hands, they wandered around the perimeter of the ball field.
他们手里拿着饮料在球场周围漫不经心地遛跶。
The barbed wire fence round the perimeter discouraged intruders.
周围有铁丝网阻止了外人闯入.
Guards had been posted at several points around the perimeter.
在环形防线上已布置了几处岗哨.
The circle has greater area than a regular polygon of the same perimeter.
正的面积比同样周长的正多边形的面积大。
How am I to find the perimeter in the dark?
我在黑暗里怎么看出周围的警戒线呢？

🌱 联想助记

【记】※ peri-前缀“周围”,meter-米:圆周边的米数即周长 ※ per-每一,i-似“蜡烛”,meter-米:每一根蜡烛的周长有一米

✅ 同义词

profile circumference contour girth

🔤 词根

peri
peri-表示“周围”

📖 牛津释义

perimeter n 1 (length of the) outer edge of a closed geometric shape 周; 周边; 边缘; 周长. 2 boundary of an area 周围的界限 Guards patrolled the perimeter of the airfield. 卫兵沿机场四周巡逻. [attrib 作定语] the perimeter fence 周围的篱笆. Cf 参看 circumference.

🔁 扩展释义

*[pә'rimitә]n. 周长, 周界, 边缘【医】 周, 周边, 周界线; 周长; 视野计

🏥 医学释义

①视野计 ②周长

🌿 同词根单词

period n. 时期;（一段）时间;学时;句号; adj. 具有某个时代特征的;（关于）过去某一特定历史时期的;（家具、服饰、建筑等）某一时代的;
periodic adj. 周期的;定期的;回归的;间歇的，时而发生的;

📖 同为「CET-6」词汇

bountiful adj. 慷慨给予的;丰富的，充裕的;
indiscriminate adj. 不加选择的，不分青红皂白的;随意的，任性的，任意的;眼内无珠;汗漫不可收拾;
outgrowth n. 自然结果，副产物，生长物;
womb n. 子宫;发源地，摇篮; vt. 容纳;
adrenal adj. <解>肾上的，肾旁的，肾上腺的;
implicit adj. 不言明[含蓄]的;无疑问的，绝对的;成为一部份的;内含的;
revere vt. 崇敬;尊崇;敬畏;
forebear n. 祖先，祖宗;
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🗣️ 情景例句

Large groups of Native Americans were forced to move away form their old hunting grounds.
成批成批的美洲土著人被迫从他们原来的狩猎场迁走。
New Zealand is an impotant agricultural country with a small population. In size it is bigger than Guangdong Province, yet has a much smaller population.
新西兰是一个人口很少的重要的农业国。新西兰的面积比广东省大，但人口却少得多。
How did the bees know exactly in which diection to fly?
蜜蜂是怎样确切地知道朝哪个方向飞呢？
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🔤 更多 P 开头的单词

parallel transmission
pectinate line
permanent preparation
piasmodesma
plane of a loop
pohl
power ground
priority interrupt module
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