单词	主持人手册
释义	主持人手册investigators brochure
随便看	doublefortified double forward marching double foul double founted double-founted doublefounted double {fr.} double fracture double frame double-framed generator double framed wall double frame hammer double-frame hammer double frequence sampler double frequency double-frequency generator double frequency laser double frequency receiver double frequency recording double frequency recording，dfr double frequency sequence signalling system double frequency shift keying double-frequency shift keying double frequency shift keying{=dfsk} double frequency vibration