filamentary structure marked by the black arrow (see panels (a4), (b1)-(b3)). The twisted structure is marked by the back arrow in the panel (a4). However, the other filamentary structure does not exhibit any twisted structures. This means twisted magnetic fields exist in the filamentary structure marked by the black arrow and the other filamentary structure lacks of the twisted magnetic field. This also can explain why the lifted plasma could not remain in the filamentary structure marked by the blue arrow, which is due to the lack of twisted structure or dips structure in that located magnetic field. Panels (c1)-(c4) and (d1)-(d4) show the corresponding images of the line-of-sight magnetic fields. White patches denote the magnetic field with positive polarity, while black ones denote the magnetic field with negative polarity. The adjacent main sunspot was the positive magnetic field. Based on these panels, one can see that the emergence of some magnetic fluxes occurred in the vicinity of the filament marked by the yellow box in the panel (d1) of Fig.\[fig2\]. Therefore, we suspect that there is a close relationship between the jets and the flux emergence. More and more observational evidences and numerical simulations manifest that the jets can 