Circle

circ
cycl
orb, orbit

circ
词根含义：ring;
助记词：circle，circ（圆环）+le=》圆，环绕
同根词：circle, circular, encircle, circus, circulate, circuit, microcircuit

cycl
词根含义：circle;
助记词：cycle，cycl（圆）+e=》绕圆一周=》周期，循环
同根词：autocycle, bicycle, cycle, cyclone, encyclopaedia, hemicycle, tetracycline, unicycle,

orb, orbit
词根含义：circle;
助记词：orbit，orbit（圆圈）=》圆圈留下的痕迹（比如地球绕太阳运动的轨道）=》轨道
同根词：orb, orbicular, orbit, orbital, exorbitant

orbit---solar-system.jpg