单词	free-electron laser
释义	free-electron laser noun free-elec·​tron laser ˈfrē-i-ˈlek-ˌträn-  : a laser that can be tuned over a wide range of frequencies and that produces electromagnetic radiation by the motion of electrons moving at relativistic velocities in a magnetic field Word History First Known Use 1978, in the meaning defined above
随便看	homiletics homiliary homilies homilist homilists homilite homilize homily homin- hominal hominess hominesses homing homing (in on) homing in on homing instinct homing pigeon homings homini- hominians hominid hominidaes hominids hominies hominin

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