ergative verb
美
英 
例句
Middle voice (or rather the ergative verb) allows you to avoid mentioning who or what does the action.
用中动语态(或施格动词),你可以避免说出谁或者什么人做这个动作。
An ergative verb is a verb whose action affects the subject of the verb with the patient as its subject.
作格动词是动词行为影响动词主语的一类动词,即动词主语是受事。