1. 證明;論證;表明;說明
    To demonstrate a fact means to make it clear to people.

    e.g. The study also demonstrated a direct link between obesity and mortality...
           該研究還表明了肥胖癥和死亡率之間存在直接的聯(lián)系。
    e.g. You have to demonstrate that you are reliable...
           你得證明自己是靠得住的。

2. 顯示;表露
    If you demonstrate a particular skill, quality, or feeling, you show by your actions that you have it.

    e.g. Have they, for example, demonstrated a commitment to democracy?...
           例如，他們是否已表現(xiàn)出會致力于民主？
    e.g. The government's going to great lengths to demonstrate its military might.
           該政府正不遺余力地展示其軍事力量。

3. 示威;進行示威游行（或集會）
    When people demonstrate, they march or gather somewhere to show their opposition to something or their support for something.

    e.g. 30,000 angry farmers demonstrated against possible cuts in subsidies...
           3萬名憤怒的農(nóng)場主示威抗議可能對農(nóng)產(chǎn)品補貼進行的削減。
    e.g. In the cities vast crowds have been demonstrating for change...
           在城市里，大批的人群舉行示威游行，要求進行變革。

4. 示范;演示
    If you demonstrate something, you show people how it works or how to do it.

    e.g. The BBC has just successfully demonstrated a new digital radio transmission system...
           英國廣播公司剛剛成功地演示了一套新的數(shù)字無線電傳輸系統(tǒng)。
    e.g. He flew the prototype to West Raynham to demonstrate it to a group of senior officers...
           他將原型空運到西雷納姆，向一批高級軍官作演示。