Interaction between the eruption and SAs. (a)–(d) Interaction process. White arrows indicate SAs, and cyan arrows indicate the erupting loops wrapping the flux rope (the green arrow). The red box represents the FOV of panels c,d. (e)–(g) Time-distance plots along S1 and S2 (red and blue lines in panels c,d). The dotted lines show the expansion speeds of the flux rope (pink), the loops (blue), and the strands (red) of SAs (the white arrow).