词根词缀:radio-, radi-, rad-
【来源及含义】Latin: ray, radiating [the Latin word for the spokes of a wheel is radius]; spoke, staff, rod
【同源单词】involuntary euthanasia, irradiance, irradiant, irradiate, radial, radian
【来源及含义】Latin: ray, radiating [the Latin word for the spokes of a wheel is radius]; spoke, staff, rod
【同源单词】involuntary euthanasia, irradiance, irradiant, irradiate, radial, radian