performative
adjective/pəˈfɔːmətɪv/
/pərˈfɔːrmətɪv/
(grammar)- when somebody uses a performative word or expression, for example ‘I promise’ or ‘I apologize’, they are also doing the action indicated by the word or expression (promising or apologizing)
表述行为的（如说 I promise 或 I apologize，同时表示许诺或道歉）