1、In speech acts, we can identify both the illocutionary force and the propositional content.
语言行为中，我们可以确定言语行为的力度和陈述内容。

2、As a form of illocutionary act, a promise expresses the speaker's commitment to perform a future action.
作为言语行为的一种形式，承诺表达了说话人对未来行动的承诺。