本文主張漢語中動貌標記“過”所具有的「迴轉」語意概念。回顧眾多對“過”語意的探討文獻後，本文指出，傳統分析多強調其「經驗」意涵，而近年來如Hsiao（2003）、Pan and Lee（2004）、Lin（2007）、Wu（2008）等人的研究，則又過於偏重其衍生出的「結果狀態」，以推演出它的「不連續」意涵。本文雖贊同“過”具有內在的經驗或不連續意涵，然而亦同時認為在結果狀態中由其不連續的基本語意，尚會延伸出「迴轉」的概念，將一不連續事件中的（時間或物理）屬性帶回至舊有的狀態。此種看法將“過”視為兼具有「時間」及「非時間」的雙重概念。以上分析的理論架構來自於認知語法中，如Ahrens and Huang （2002），對時間概念隱喻提出的理論：時間應被解讀為移動過一片景物的點，點上附著了面向過去、檢視事件發生的「自我」。若以上述假設來看待“過”的含意，可將“過”視為中斷時間、並提供自我一個觀點，使其得以構思事件的迴轉性質。

This paper argues for the property of reversibility toward the interpretation of the aspectual guo in Mandarin Chinese. After thorough examination of studies on its meaning in the literature, I point out that traditional analyses stress too heavily on the experientiality, while recent studies- such as Hsiao (2003), Pan and Lee (2004), Lin (2007), and Wu (2008)- focus too much on the resultant state entailed by guo to derive its meaning of discontinuity. I propose that experientiality or discontinuity still serves as the inherent meaning of guo, yet the resultant state in many events further encodes an extended meaning of reversibility which relates the temporal/physical properties of a discontinued event back to its pre-existing state. The semantics of guo based on this hypothesis is arguably a temporal as well as an atemporal notion. This account of guo is possible provided that the theory of time based on the cognitive grammar as proposed in Ahrens and Huang (2002) is adopted as the framework: in their theory the concept of time is conceived as a moving point over a landscape, and the ego facing the past is attached to this point in relation to the event. Under this assumption, the meaning of guo functions to discontinue the time and provides the ego a viewpoint to conceptualize the reversibility property.