The measurements presented in the figure show that the largest fluxes are observed in the flux rope (green bar in the figure), where electrons are mainly directed perpendicular to the magnetic field and waves are weak. Smaller fluxes but harder spectra are observed at magnetic separatrices around hte diffusion region (red and blue bars), while the electric field in the diffusion region Ey~7 mV7m was much larger than typical steady reconnection values. It is suggested that the field-aligned electrons at separatrices as directly accelerated by the reconnection electric field in the diffusion region, whereas the perpendicular electrons are trapped within the flux rope and energized by a combination of betatron acceleration with non-adiabatic pitch-angle scattering. These observations indicated that thin current sheets during unsteady reconnectionare important for the acceleration of energetic electrons and those simultaneous measurements of electrons and electromagnetic fields are crucial to understand the physics of the acceleration mechanisms.