ADJ （动词）通格的（即同一个名词既可作其宾语又可作其主语） An ergative verb is a verb that can be both transitive and intransitive, where the subject of the intransitive verb is the same as the object of the transitive verb. For example, 'open' is an ergative verb because you can say 'The door opened' or 'She opened the door'. （动词）通格的（即同一个名词既可作其宾语又可作其主语）