circ
cycl
orb, orbit
circ
詞根含義:ring;
助記詞:circle,circ(圓環(huán))+le=》圓,環(huán)繞
同根詞:circle, circular, encircle, circus, circulate, circuit, microcircuit
cycl
詞根含義:circle;
助記詞:cycle,cycl(圓)+e=》繞圓一周=》周期,循環(huán)
同根詞:autocycle, bicycle, cycle, cyclone, encyclopaedia, hemicycle, tetracycline, unicycle,
orb, orbit
詞根含義:circle;
助記詞:orbit,orbit(圓圈)=》圓圈留下的痕跡(比如地球繞太陽運(yùn)動(dòng)的軌道)=》軌道
同根詞:orb, orbicular, orbit, orbital, exorbitant

orbit---solar-system.jpg