词汇	happy in doing good
释义	happy in doing good 乐于行善
随便看	radial velocities radial velocity radial-velocity radial velocity component radial velocity compound radial velocityconvergence radial velocity curve radial velocity field radial velocity measurement radial-velocity orbit radial-velocity reference star radial velocity scanner radial velocity spectrometer radial-velocity spectrometer radial-velocity spectrometer, RVS radial velocity spectrum radial-velocity standard radial-velocity standard star radial-velocity survey radial-velocity trace radial venation radial ventilated type radial-ventilated type radial ventilation radial ventilation groove