1 [C] the act of performing sth in front of an audience; something that you perform 表演；演出；节目: What time does the performance start? 演出什么时候开始？

2 [C] the way a person performs in a play, concert, etc 表演；演出水平: His moving performance in the film won him an Oscar. 他在这部电影里感人的演出使他获得了奥斯卡金像奖。

3 [C] the way in which you do sth, especially how successful you are 表现（尤指出色的）: The company's performance was disappointing last year. 这家公司去年的表现令人失望。

4 [U] (used about a machine, etc) the ability to work well （指机器等）性能: This car has a high performance engine. 这辆汽车有一部性能很好的引擎。

5 [U] [sing] (formal 正式) the act or process of doing a task, an action, etc 执行；做；履行: the performance of your duties 履行职责