单词	heap the sand up
释义	heap the sand up 把沙堆起来
随便看	video taping system video-taping system video tapping Video Target Range Projection System Video Target Simulator video target tracking Video Target Trainer video teaching Video-teaching video teleconferencing Video Teleconferencing Capability Video Teleconferencing System video telemetering camera systems video telemetry videotelephone video telephone Video-telephone videotelephone communication video telephone exchange video telephone private branch exchange videotelephones video telephone set videotelephone station video telephone system videotelephonic