1. 戏;剧
    A drama is a serious play for the theatre, television, or radio.

    e.g. He acted in radio dramas.
           他在广播剧中扮演角色。

2. 戏剧;戏剧艺术;戏剧事业
    You use drama to refer to plays in general or to work that is connected with plays and the theatre, such as acting or producing.

    e.g. He knew nothing of Greek drama...
           他对希腊戏剧一无所知。
    e.g. She met him when she was at drama school.
           她在戏剧学校上学时认识了他。

3. 戏剧性事件;戏剧性情节
    You can refer to a real situation which is exciting or distressing as drama .

drama的反义词

    e.g. There was none of the drama and relief of a hostage release...
           丝毫没有释放人质时的那种激动和如释重负的感觉。
    e.g. For all its drama, the event was not unexpected.
           虽然这件事带有戏剧性，但并不意外。