💡 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;
查看全部CET-6词汇 ›

🗣️ 情景例句

Yes, I'm sorry about that. I think we just had a misunderstanding about the plan, but I was very disappointed not to be going out. So I got angry and started shouting at you.
是的，那件事我很抱歉。我想我们只是对于外出计划有误解罢了，不过没能外出我很失望。所以我就生气了，开始冲你大喊大叫。
They took with them dogs, rats and plants like the sweet potato,and settled mainly in North Island where the weather was warmer.
他们随身带去了狗、老鼠及像红薯之类的植物，并且大部分定居在气候比较温暖的北岛。
We're warm, we're dry and we're safe.
“我们不感到冷，身上是干的，而且我们很安全。
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🔤 更多 P 开头的单词

packing tower
peg away
periscope 'pɛrɪskop
phenol-formaldehyde resin
platinum blond
Polygonia comma
precortisyl
Prince-of-Wales'-heath
全部 P 开头单词 ›