短語(yǔ)詞組短語(yǔ)overhead d projector 高架投影機(jī)Protablc overhead projector 便攜式投影儀Film Overhead Projector 膠片投影機(jī)type overhead projector 反射式教學(xué)投影儀Overhead Projector with screen 幻燈機(jī)及屏幕overhead projector noun 高射投影儀Overhead Projector Transparency 投影機(jī)透明度Slide & Overhead projector 幻燈機(jī) 返回 overhead projector