Semelfactive

一次体

A term used in the grammatical analysis of aspect, to refer to an event which takes place once only, as commonly happens with such verbs as sneeze, knock, etc. It is regularly contrasted with iterative.

对体作语法分析的术语，指一个时间只发生一次，如sneeze“打喷嚏”、knock“敲”这类动词的动作经常发生的那样。一次体一般与反复体对立。