Abstract:Drawing on temporal frames of reference, this study addresses two constructions: biānA biānB ‘side A side B’ and yòuA yòuB ‘again A again B’.It is discovered that biān-biānas a simultaneity frame emphasizes durative synchronization between pairwise actions, and cannot structure spatial entities, states or properties; yòu-yòuas another simultaneity frame, by contrast, emphasizes simultaneity out of successive iteration, and can structure spatial entities, states or properties.Despite these differences, either biān-biānor yòu-yòumanifests the identical interval effect, i.e., the closer the utterance distance between biānand biānor yòuand yòuis, the more these two simultaneity frames are instantiated.This fact suggests that linguistic features in form regulate the formation of a conceptual frame.