言语行为是人们通过话语的形式所实施的行为，即以言行事行为，比如，问候，道歉，请求，宣判和许诺等。

Speech act refers to the act performed by means of utterances, for example, greeting, apology, request, verdict, promise and so on.

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传统言语行为理论认为，以言行事这一行为受条件规则的制约，并总结出一套言语行为的构成规则。

Traditional speech act theory claims that speech ACTS are governed by a set of constitutive rules, which are called felicity conditions of speech ACTS.

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