相关单词同义词semidiameter, 近义词 circle 圆圈, breadth 宽度, line 线, distance 距离, length 长度, area 面积, range 范围, ambit （权势等的）范围..., extent 广度, bounds 界限, scope 机会area of influence, 影响区域, 影响面积..., umbrella 伞, reach 到达, sweep 打扫, remit 汇出, r 字母r, spoke 轮辐, wheel spoke 轮辐临近词radix, radium, Radiusi, radiused, radiusing, radius bar, radius die, radius tap, radiuscope, radius arm, radius rod, radius tip相似词radiotherapy, radioulnar, radish, radium, radix, Radnorshire, radon, Rafferty's rules, 返回 radius