英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。The BBC has just successfully demonstrated a new digital radio transmission system.凯瑟琳演示了洁面的正确方法。Catherine demonstrated the proper way to cleanse the face.采用了演示及播放电影和录像带的形式，以起到教育作用。Demonstrati...
I'm having a hell of a wild time demonstrating this car.为展示这种车子,把我搞得狼狈不堪.Protesters found a novel way of demonstrating against steeply rising oil prices...抗议者找到了抗议油价飞涨的新办法。Candidates who answered "b" could be awarde...