demonstrate /ˈdemənstreit/ vt.& vi. 1.显示，表露，表演(技术等): demonstrate great courage 显示巨大的勇气 The lawyer demonstrated that the witness was lying. 律师证明目击者/证人在说谎。The teacher demonstrated the experiment to the class. 老师做实验给全班同学看。 2. 示威，游行: demonstrate for better working conditions 为争取好的工作条件而示威； demonstrate against… 为反对…而示威