1. She played a tune impromptu.
    她即席演奏了一曲。

1. The President gave an impromptu press conference.
    总统临时举行记者招待会。

1. 即兴曲：[即兴曲](Impromptu)它原是钢琴独奏曲的体裁名称,后也用于其他乐器的独奏乐曲. 它是即兴创作的器乐小品,常由激动的段落和深刻抒情的段落组成,所以大多数是复三部曲式的. [小夜曲](Serenade)原指傍晚或夜间在情人的窗下歌唱的爱音乐鉴赏论坛情歌曲体裁,

2. 我爱萧邦：告拉飞斯演出过的电影包括<逃出洛杉矶>>、<我爱萧邦>>(Impromptu)、>等;2000年,他凭电影>在祖国荣获「希腊萨洛尼卡国际影展」最佳男演员奖,去年更凭本片成为希腊以至欧洲的焦点巨星.

3. 即席的：技巧一:解释 (explanation) 如果你查字典的话,你会发现,口译这个词的英语表达interpretation, 就是解释的意思,所以口译说到底就是在做一件事解释,把意思解释明白就是口译员的职责. 口译不可能像笔译那样做到雅,因为口译是即席的(impromptu),译员

4. 即席,毫无准备地,立刻的：imprint 印刻,盖印於; 不可磨灭的影响 | impromptu 即席,毫无准备地,立刻的 | improve 增进,改善

1. 即兴的;事先无准备的
    An impromptu action is one that you do without planning or organizing it in advance.

    e.g. This afternoon the Palestinians held an impromptu press conference...
           今天下午巴勒斯坦方面临时召开了记者招待会。
    e.g. The children put on an impromptu concert for the visitors.
           孩子们为来访者即兴献上了一场音乐会。

1. an extemporaneous speech or remark

    e.g. a witty impromptu must not sound premeditated

2. a short musical passage that seems to have been made spontaneously without advance preparation

1. with little or no preparation or forethought

    e.g. his ad-lib comments showed poor judgment
           an extemporaneous piano recital
           an extemporary lecture
           an extempore skit
           an impromptu speech
           offhand excuses
           trying to sound offhanded and reassuring
           an off-the-cuff toast
           a few unrehearsed comments

    Synonym: ad-libextemporaneousextemporaryextemporeoffhandoffhandedoff-the-cuffunrehearsed

1. without advance preparation

    e.g. he spoke ad lib

    Synonym: ad libad libitumspontaneously