Perimeter
[ pə'rɪmɪtɚ ]
其它 Other
n. <数>周长;周围，边界;
💡 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
🔤 词根
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
📖 同为「CET-6」词汇
查看全部CET-6词汇 ›🗣️ 情景例句
Do all men kill the things they do not love?
难道所有的人都要铲除他们所不爱的东西吗？
Other books are for reading slowly and carefully. If it is a book on a subject that you are interested in, you will want to chew and digest it. That does not mean reading it too slowly. When you pick up a book for the first time, check that it is not to
还有一些书是要慢慢地、仔细地阅读的。如果有一本书谈论的题目你很感兴趣，你就想“咀嚼、消化它”。这并不意味着要读得太慢。当你第一次拿起一本书的时候，你得检查一下，这本书不是太难读。除非从头几页书中你能看出这是一本你容易读懂的书，否则你就不要去读它。
Many families spend this at a cottage by the seaside or go camping in the hills or on the coast.
许多家庭会在海滨的小屋里度过这段时光，或到小山坡上或在海岸边野营度假。