| 单词 | 同心圆 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔annual ring〕The layer of wood formed in a plant during a single year. Annual rings appear concentric when viewed in cross section.年轮：一年里树木长出的层。从截面上看年轮呈同心圆状美国传统〔annulus〕Mathematics The figure bounded by and containing the area between two concentric circles.【数学】 圆环域：以两个同心圆为界的图形或两圆之间包括的图形美国传统〔coincide〕The centres of concentric circles coincide.同心圆的圆心是一个。21世纪英汉〔coincide〕The centres of concentric circles coincide.同心圆的圆心重合。英汉大词典〔concentric〕On a blackboard, he drew five concentric circles.他在黑板上画了5个同心圆。柯林斯高阶〔onion〕The rounded, edible bulb of this plant, composed of fleshy, tight, concentric leaf bases having a pungent odor and taste.洋葱头：这种植物的鳞茎，由紧密同心圆组成；有刺鼻的气味和味道美国传统〔ring〕Mathematics The area between two concentric circles; annulus.【数学】 环域：同心圆之间的区域；同环域美国传统〔ring〕The street plan of the city has evolved as a series of concentric rings.该城市的街道平面图像一圈圈的同心圆环。牛津搭配〔tambour〕A small wooden embroidery frame consisting of two concentric hoops between which fabric is stretched.圆形绷架：用两个中间绷有织物的同心圆圈构成的一个刺绣用的小木架美国传统〔tambour〕To do (embroidery) on a frame consisting of two concentric hoops.在由两个同心圆圈构成的架子上做（刺绣活）美国传统 |
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