| 单词 | circumference |
|---|---|
| 音标 | [sə'kʌmfərəns] |
| 解释 | n.周围；圆周；周长 |
| 红宝书 | 【英】 n.周围,圆周(line that marks out a circle);周长(distance of this) 【考】 circumference : circle / perimeter : rectangle / border : country(圆周和圆/矩形周长 和矩形/边界和国家) 【记】 circum(环绕,周围)+f er(带来) +ence→带来一圈→周长 |
| 字源 | circumference (n.) late 14c., from Latin circumferentia, neuter plural of circumferens, present participle of circumferre "to lead around, take around, carry around," from circum "around" (see circum-) + ferre "to carry" (see infer). A loan-translation of Greek periphereia "periphery, the line round a circular body," literally "a carrying round" (see periphery). Related: Circumferential. |
| 不择手段背单词 | n. 圆周; 周围(一个平面物体的边界线); 周长 = distance 【例】The earth'apos;s circumference is more than 40000 kilometers 地球的周长为四万多公里. chest circumference 胸围 【记】circum圈, fer带来－带来一圈－圆周 【类】circumference: circle = perimeter: rectangle = border: country圆周和圆 = 矩形周长和矩形 = 边界和国家 |
| 趣味全助记 | 【记】circum circle 周围 + ferre carry, conference 一起来 【相关】periphery |
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