1 [T] (formal 正式) to do a piece of work or sth that you have been ordered to do 做；执行；进行: to perform an operation/an experiment/a task 做手术；做实验；执行任务

2 [I,T] to take part in a play or to sing, dance, etc in front of an audience 演出；表演: She is currently performing at the National Theatre. 她目前正在国家剧院演出。

3 [I] perform (well/badly/poorly) to work or function well or badly 运作（良好╱不佳）: The company has not been performing well recently. 公司最近营运欠佳。